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Finding the Fourth Proportional to 530,836.30, 797,809.65 and 521,505.10

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Solution

The fourth proportional to 530,836.30, 797,809.65 and 521,505.10 is: 783,785.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,836.30 : 797,809.65 = 521,505.10 : x
  2. Step 2: Convert to fraction form
    530,836.30/797,809.65 = 521,505.10/x
  3. Step 3: Cross multiply
    530,836.30x = 797,809.65 × 521,505.10
  4. Step 4: Simplify right side
    530,836.30x = 416,061,801,304.22
  5. Step 5: Solve for x
    x = 416,061,801,304.22/530,836.30
  6. Step 6: Final answer
    x = 783,785.51

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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.