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Finding the Fourth Proportional to 488,126.60, 731,412.30 and 362,155.40

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Solution

The fourth proportional to 488,126.60, 731,412.30 and 362,155.40 is: 542,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,126.60 : 731,412.30 = 362,155.40 : x
  2. Step 2: Convert to fraction form
    488,126.60/731,412.30 = 362,155.40/x
  3. Step 3: Cross multiply
    488,126.60x = 731,412.30 × 362,155.40
  4. Step 4: Simplify right side
    488,126.60x = 264,884,914,071.42
  5. Step 5: Solve for x
    x = 264,884,914,071.42/488,126.60
  6. Step 6: Final answer
    x = 542,656.18

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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.