Home / 442,569.40-663,952.80-127,001.71

Finding the Fourth Proportional to 442,569.40, 663,952.80 and 127,001.71

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Solution

The fourth proportional to 442,569.40, 663,952.80 and 127,001.71 is: 190,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,569.40 : 663,952.80 = 127,001.71 : x
  2. Step 2: Convert to fraction form
    442,569.40/663,952.80 = 127,001.71/x
  3. Step 3: Cross multiply
    442,569.40x = 663,952.80 × 127,001.71
  4. Step 4: Simplify right side
    442,569.40x = 84,323,140,959.29
  5. Step 5: Solve for x
    x = 84,323,140,959.29/442,569.40
  6. Step 6: Final answer
    x = 190,530.89

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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.