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Finding the Fourth Proportional to 451,545.92, 623,153.60 and 257,970.56

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Solution

The fourth proportional to 451,545.92, 623,153.60 and 257,970.56 is: 356,010.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,545.92 : 623,153.60 = 257,970.56 : x
  2. Step 2: Convert to fraction form
    451,545.92/623,153.60 = 257,970.56/x
  3. Step 3: Cross multiply
    451,545.92x = 623,153.60 × 257,970.56
  4. Step 4: Simplify right side
    451,545.92x = 160,755,283,158.02
  5. Step 5: Solve for x
    x = 160,755,283,158.02/451,545.92
  6. Step 6: Final answer
    x = 356,010.93

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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.