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Finding the Fourth Proportional to 539,082.30, 808,510.05 and 272,592.30

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Solution

The fourth proportional to 539,082.30, 808,510.05 and 272,592.30 is: 408,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,082.30 : 808,510.05 = 272,592.30 : x
  2. Step 2: Convert to fraction form
    539,082.30/808,510.05 = 272,592.30/x
  3. Step 3: Cross multiply
    539,082.30x = 808,510.05 × 272,592.30
  4. Step 4: Simplify right side
    539,082.30x = 220,393,614,102.62
  5. Step 5: Solve for x
    x = 220,393,614,102.62/539,082.30
  6. Step 6: Final answer
    x = 408,831.11

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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.