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Finding the Fourth Proportional to 488,606.10, 732,909.15 and 470,891.40

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Solution

The fourth proportional to 488,606.10, 732,909.15 and 470,891.40 is: 706,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,606.10 : 732,909.15 = 470,891.40 : x
  2. Step 2: Convert to fraction form
    488,606.10/732,909.15 = 470,891.40/x
  3. Step 3: Cross multiply
    488,606.10x = 732,909.15 × 470,891.40
  4. Step 4: Simplify right side
    488,606.10x = 345,120,615,716.31
  5. Step 5: Solve for x
    x = 345,120,615,716.31/488,606.10
  6. Step 6: Final answer
    x = 706,337.10

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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.