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Finding the Fourth Proportional to 658,130.59, 986,999.46 and 279,044.92

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Solution

The fourth proportional to 658,130.59, 986,999.46 and 279,044.92 is: 418,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,130.59 : 986,999.46 = 279,044.92 : x
  2. Step 2: Convert to fraction form
    658,130.59/986,999.46 = 279,044.92/x
  3. Step 3: Cross multiply
    658,130.59x = 986,999.46 × 279,044.92
  4. Step 4: Simplify right side
    658,130.59x = 275,417,185,355.74
  5. Step 5: Solve for x
    x = 275,417,185,355.74/658,130.59
  6. Step 6: Final answer
    x = 418,484.10

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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.