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Finding the Fourth Proportional to 488,957.60, 733,655.10 and 236,140.40

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Solution

The fourth proportional to 488,957.60, 733,655.10 and 236,140.40 is: 354,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,957.60 : 733,655.10 = 236,140.40 : x
  2. Step 2: Convert to fraction form
    488,957.60/733,655.10 = 236,140.40/x
  3. Step 3: Cross multiply
    488,957.60x = 733,655.10 × 236,140.40
  4. Step 4: Simplify right side
    488,957.60x = 173,245,608,776.04
  5. Step 5: Solve for x
    x = 173,245,608,776.04/488,957.60
  6. Step 6: Final answer
    x = 354,316.22

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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.