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Finding the Fourth Proportional to 356,545.60, 534,818.40 and 156,653.80

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Solution

The fourth proportional to 356,545.60, 534,818.40 and 156,653.80 is: 234,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,545.60 : 534,818.40 = 156,653.80 : x
  2. Step 2: Convert to fraction form
    356,545.60/534,818.40 = 156,653.80/x
  3. Step 3: Cross multiply
    356,545.60x = 534,818.40 × 156,653.80
  4. Step 4: Simplify right side
    356,545.60x = 83,781,334,669.92
  5. Step 5: Solve for x
    x = 83,781,334,669.92/356,545.60
  6. Step 6: Final answer
    x = 234,980.70

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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.