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Finding the Fourth Proportional to 613,117.60, 921,231.60 and 544,688.80

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Solution

The fourth proportional to 613,117.60, 921,231.60 and 544,688.80 is: 818,414.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,117.60 : 921,231.60 = 544,688.80 : x
  2. Step 2: Convert to fraction form
    613,117.60/921,231.60 = 544,688.80/x
  3. Step 3: Cross multiply
    613,117.60x = 921,231.60 × 544,688.80
  4. Step 4: Simplify right side
    613,117.60x = 501,784,534,726.08
  5. Step 5: Solve for x
    x = 501,784,534,726.08/613,117.60
  6. Step 6: Final answer
    x = 818,414.83

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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.