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Finding the Fourth Proportional to 532,728.20, 799,545.90 and 217,411.40

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Solution

The fourth proportional to 532,728.20, 799,545.90 and 217,411.40 is: 326,302.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,728.20 : 799,545.90 = 217,411.40 : x
  2. Step 2: Convert to fraction form
    532,728.20/799,545.90 = 217,411.40/x
  3. Step 3: Cross multiply
    532,728.20x = 799,545.90 × 217,411.40
  4. Step 4: Simplify right side
    532,728.20x = 173,830,393,483.26
  5. Step 5: Solve for x
    x = 173,830,393,483.26/532,728.20
  6. Step 6: Final answer
    x = 326,302.22

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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.