Home / 648,053.10-972,079.65-368,117.10

Finding the Fourth Proportional to 648,053.10, 972,079.65 and 368,117.10

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Solution

The fourth proportional to 648,053.10, 972,079.65 and 368,117.10 is: 552,175.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,053.10 : 972,079.65 = 368,117.10 : x
  2. Step 2: Convert to fraction form
    648,053.10/972,079.65 = 368,117.10/x
  3. Step 3: Cross multiply
    648,053.10x = 972,079.65 × 368,117.10
  4. Step 4: Simplify right side
    648,053.10x = 357,839,141,727.02
  5. Step 5: Solve for x
    x = 357,839,141,727.02/648,053.10
  6. Step 6: Final answer
    x = 552,175.65

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.