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Finding the Fourth Proportional to 647,557.70, 971,336.55 and 597,791.30

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Solution

The fourth proportional to 647,557.70, 971,336.55 and 597,791.30 is: 896,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,557.70 : 971,336.55 = 597,791.30 : x
  2. Step 2: Convert to fraction form
    647,557.70/971,336.55 = 597,791.30/x
  3. Step 3: Cross multiply
    647,557.70x = 971,336.55 × 597,791.30
  4. Step 4: Simplify right side
    647,557.70x = 580,656,538,962.02
  5. Step 5: Solve for x
    x = 580,656,538,962.02/647,557.70
  6. Step 6: Final answer
    x = 896,686.95

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Similar ratio
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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.