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Finding the Fourth Proportional to 502,715.20, 704,734.40 and 502,715.20

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Solution

The fourth proportional to 502,715.20, 704,734.40 and 502,715.20 is: 704,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,715.20 : 704,734.40 = 502,715.20 : x
  2. Step 2: Convert to fraction form
    502,715.20/704,734.40 = 502,715.20/x
  3. Step 3: Cross multiply
    502,715.20x = 704,734.40 × 502,715.20
  4. Step 4: Simplify right side
    502,715.20x = 354,280,694,842.88
  5. Step 5: Solve for x
    x = 354,280,694,842.88/502,715.20
  6. Step 6: Final answer
    x = 704,734.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.