Home / 711,184,046,288.25-981,408,590,594.38-402,528,778,396.51

Finding the Fourth Proportional to 711,184,046,288.25, 981,408,590,594.38 and 402,528,778,396.51

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Solution

The fourth proportional to 711,184,046,288.25, 981,408,590,594.38 and 402,528,778,396.51 is: 555,475,341,638.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,184,046,288.25 : 981,408,590,594.38 = 402,528,778,396.51 : x
  2. Step 2: Convert to fraction form
    711,184,046,288.25/981,408,590,594.38 = 402,528,778,396.51/x
  3. Step 3: Cross multiply
    711,184,046,288.25x = 981,408,590,594.38 × 402,528,778,396.51
  4. Step 4: Simplify right side
    711,184,046,288.25x = 395,045,201,079,796,376,797,184
  5. Step 5: Solve for x
    x = 395,045,201,079,796,376,797,184/711,184,046,288.25
  6. Step 6: Final answer
    x = 555,475,341,638.47

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.