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Finding the Fourth Proportional to 936,276.60, 1,404,414.90 and 712,327.80

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Solution

The fourth proportional to 936,276.60, 1,404,414.90 and 712,327.80 is: 1,068,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,276.60 : 1,404,414.90 = 712,327.80 : x
  2. Step 2: Convert to fraction form
    936,276.60/1,404,414.90 = 712,327.80/x
  3. Step 3: Cross multiply
    936,276.60x = 1,404,414.90 × 712,327.80
  4. Step 4: Simplify right side
    936,276.60x = 1,000,403,776,004.22
  5. Step 5: Solve for x
    x = 1,000,403,776,004.22/936,276.60
  6. Step 6: Final answer
    x = 1,068,491.70

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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.