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Finding the Fourth Proportional to 647,534.10, 971,301.15 and 544,890.90

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Solution

The fourth proportional to 647,534.10, 971,301.15 and 544,890.90 is: 817,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,534.10 : 971,301.15 = 544,890.90 : x
  2. Step 2: Convert to fraction form
    647,534.10/971,301.15 = 544,890.90/x
  3. Step 3: Cross multiply
    647,534.10x = 971,301.15 × 544,890.90
  4. Step 4: Simplify right side
    647,534.10x = 529,253,157,794.54
  5. Step 5: Solve for x
    x = 529,253,157,794.54/647,534.10
  6. Step 6: Final answer
    x = 817,336.35

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Double scale
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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.