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Finding the Fourth Proportional to 637,241.40, 955,862.10 and 353,806.20

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Solution

The fourth proportional to 637,241.40, 955,862.10 and 353,806.20 is: 530,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,241.40 : 955,862.10 = 353,806.20 : x
  2. Step 2: Convert to fraction form
    637,241.40/955,862.10 = 353,806.20/x
  3. Step 3: Cross multiply
    637,241.40x = 955,862.10 × 353,806.20
  4. Step 4: Simplify right side
    637,241.40x = 338,189,937,325.02
  5. Step 5: Solve for x
    x = 338,189,937,325.02/637,241.40
  6. Step 6: Final answer
    x = 530,709.30

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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.