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Finding the Fourth Proportional to 630,359.60, 945,539.40 and 187,127.60

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Solution

The fourth proportional to 630,359.60, 945,539.40 and 187,127.60 is: 280,691.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,359.60 : 945,539.40 = 187,127.60 : x
  2. Step 2: Convert to fraction form
    630,359.60/945,539.40 = 187,127.60/x
  3. Step 3: Cross multiply
    630,359.60x = 945,539.40 × 187,127.60
  4. Step 4: Simplify right side
    630,359.60x = 176,936,518,627.44
  5. Step 5: Solve for x
    x = 176,936,518,627.44/630,359.60
  6. Step 6: Final answer
    x = 280,691.40

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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.