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Finding the Fourth Proportional to 932,489.96, 1,398,730.31 and 805,744.49

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Solution

The fourth proportional to 932,489.96, 1,398,730.31 and 805,744.49 is: 1,208,612.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,489.96 : 1,398,730.31 = 805,744.49 : x
  2. Step 2: Convert to fraction form
    932,489.96/1,398,730.31 = 805,744.49/x
  3. Step 3: Cross multiply
    932,489.96x = 1,398,730.31 × 805,744.49
  4. Step 4: Simplify right side
    932,489.96x = 1,127,019,239,746.60
  5. Step 5: Solve for x
    x = 1,127,019,239,746.60/932,489.96
  6. Step 6: Final answer
    x = 1,208,612.74

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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.