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Finding the Fourth Proportional to 647,598.20, 971,397.30 and 606,126.20

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Solution

The fourth proportional to 647,598.20, 971,397.30 and 606,126.20 is: 909,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,598.20 : 971,397.30 = 606,126.20 : x
  2. Step 2: Convert to fraction form
    647,598.20/971,397.30 = 606,126.20/x
  3. Step 3: Cross multiply
    647,598.20x = 971,397.30 × 606,126.20
  4. Step 4: Simplify right side
    647,598.20x = 588,789,354,139.26
  5. Step 5: Solve for x
    x = 588,789,354,139.26/647,598.20
  6. Step 6: Final answer
    x = 909,189.30

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Half scale
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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.