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Finding the Fourth Proportional to 672,701.13, 932,334.81 and 660,104.01

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Solution

The fourth proportional to 672,701.13, 932,334.81 and 660,104.01 is: 914,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,701.13 : 932,334.81 = 660,104.01 : x
  2. Step 2: Convert to fraction form
    672,701.13/932,334.81 = 660,104.01/x
  3. Step 3: Cross multiply
    672,701.13x = 932,334.81 × 660,104.01
  4. Step 4: Simplify right side
    672,701.13x = 615,437,944,268.20
  5. Step 5: Solve for x
    x = 615,437,944,268.20/672,701.13
  6. Step 6: Final answer
    x = 914,875.74

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.