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Finding the Fourth Proportional to 493,646.60, 740,323.14 and 209,332.96

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Solution

The fourth proportional to 493,646.60, 740,323.14 and 209,332.96 is: 313,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,646.60 : 740,323.14 = 209,332.96 : x
  2. Step 2: Convert to fraction form
    493,646.60/740,323.14 = 209,332.96/x
  3. Step 3: Cross multiply
    493,646.60x = 740,323.14 × 209,332.96
  4. Step 4: Simplify right side
    493,646.60x = 154,974,034,252.69
  5. Step 5: Solve for x
    x = 154,974,034,252.69/493,646.60
  6. Step 6: Final answer
    x = 313,937.21

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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.