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Finding the Fourth Proportional to 577,332.60, 865,998.90 and 328,500.60

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Solution

The fourth proportional to 577,332.60, 865,998.90 and 328,500.60 is: 492,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,332.60 : 865,998.90 = 328,500.60 : x
  2. Step 2: Convert to fraction form
    577,332.60/865,998.90 = 328,500.60/x
  3. Step 3: Cross multiply
    577,332.60x = 865,998.90 × 328,500.60
  4. Step 4: Simplify right side
    577,332.60x = 284,481,158,249.34
  5. Step 5: Solve for x
    x = 284,481,158,249.34/577,332.60
  6. Step 6: Final answer
    x = 492,750.90

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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.