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Finding the Fourth Proportional to 648,244.80, 971,200.80 and 554,932.80

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Solution

The fourth proportional to 648,244.80, 971,200.80 and 554,932.80 is: 831,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,244.80 : 971,200.80 = 554,932.80 : x
  2. Step 2: Convert to fraction form
    648,244.80/971,200.80 = 554,932.80/x
  3. Step 3: Cross multiply
    648,244.80x = 971,200.80 × 554,932.80
  4. Step 4: Simplify right side
    648,244.80x = 538,951,179,306.24
  5. Step 5: Solve for x
    x = 538,951,179,306.24/648,244.80
  6. Step 6: Final answer
    x = 831,400.70

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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.