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Finding the Fourth Proportional to 514,626.76, 709,805.46 and 353,508.04

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Solution

The fourth proportional to 514,626.76, 709,805.46 and 353,508.04 is: 487,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,626.76 : 709,805.46 = 353,508.04 : x
  2. Step 2: Convert to fraction form
    514,626.76/709,805.46 = 353,508.04/x
  3. Step 3: Cross multiply
    514,626.76x = 709,805.46 × 353,508.04
  4. Step 4: Simplify right side
    514,626.76x = 250,921,936,945.90
  5. Step 5: Solve for x
    x = 250,921,936,945.90/514,626.76
  6. Step 6: Final answer
    x = 487,580.43

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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.