Home / 641,587.64-885,612.15-369,764.06

Finding the Fourth Proportional to 641,587.64, 885,612.15 and 369,764.06

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Solution

The fourth proportional to 641,587.64, 885,612.15 and 369,764.06 is: 510,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,587.64 : 885,612.15 = 369,764.06 : x
  2. Step 2: Convert to fraction form
    641,587.64/885,612.15 = 369,764.06/x
  3. Step 3: Cross multiply
    641,587.64x = 885,612.15 × 369,764.06
  4. Step 4: Simplify right side
    641,587.64x = 327,467,539,741.27
  5. Step 5: Solve for x
    x = 327,467,539,741.27/641,587.64
  6. Step 6: Final answer
    x = 510,401.89

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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.