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Finding the Fourth Proportional to 621,335.71, 932,015.16 and 194,862.11

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Solution

The fourth proportional to 621,335.71, 932,015.16 and 194,862.11 is: 292,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,335.71 : 932,015.16 = 194,862.11 : x
  2. Step 2: Convert to fraction form
    621,335.71/932,015.16 = 194,862.11/x
  3. Step 3: Cross multiply
    621,335.71x = 932,015.16 × 194,862.11
  4. Step 4: Simplify right side
    621,335.71x = 181,614,435,969.51
  5. Step 5: Solve for x
    x = 181,614,435,969.51/621,335.71
  6. Step 6: Final answer
    x = 292,296.79

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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.