Home / 641,674.08-885,531.06-369,720.36

Finding the Fourth Proportional to 641,674.08, 885,531.06 and 369,720.36

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Solution

The fourth proportional to 641,674.08, 885,531.06 and 369,720.36 is: 510,226.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,674.08 : 885,531.06 = 369,720.36 : x
  2. Step 2: Convert to fraction form
    641,674.08/885,531.06 = 369,720.36/x
  3. Step 3: Cross multiply
    641,674.08x = 885,531.06 × 369,720.36
  4. Step 4: Simplify right side
    641,674.08x = 327,398,862,294.38
  5. Step 5: Solve for x
    x = 327,398,862,294.38/641,674.08
  6. Step 6: Final answer
    x = 510,226.10

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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.