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Finding the Fourth Proportional to 497,943.70, 745,931.40 and 272,901.40

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Solution

The fourth proportional to 497,943.70, 745,931.40 and 272,901.40 is: 408,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,943.70 : 745,931.40 = 272,901.40 : x
  2. Step 2: Convert to fraction form
    497,943.70/745,931.40 = 272,901.40/x
  3. Step 3: Cross multiply
    497,943.70x = 745,931.40 × 272,901.40
  4. Step 4: Simplify right side
    497,943.70x = 203,565,723,363.96
  5. Step 5: Solve for x
    x = 203,565,723,363.96/497,943.70
  6. Step 6: Final answer
    x = 408,812.73

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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.