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Finding the Fourth Proportional to 577,218.60, 865,827.90 and 262,290.60

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Solution

The fourth proportional to 577,218.60, 865,827.90 and 262,290.60 is: 393,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,218.60 : 865,827.90 = 262,290.60 : x
  2. Step 2: Convert to fraction form
    577,218.60/865,827.90 = 262,290.60/x
  3. Step 3: Cross multiply
    577,218.60x = 865,827.90 × 262,290.60
  4. Step 4: Simplify right side
    577,218.60x = 227,098,519,387.74
  5. Step 5: Solve for x
    x = 227,098,519,387.74/577,218.60
  6. Step 6: Final answer
    x = 393,435.90

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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.