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Finding the Fourth Proportional to 462,428.52, 693,642.80 and 130,004.52

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Solution

The fourth proportional to 462,428.52, 693,642.80 and 130,004.52 is: 195,006.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,428.52 : 693,642.80 = 130,004.52 : x
  2. Step 2: Convert to fraction form
    462,428.52/693,642.80 = 130,004.52/x
  3. Step 3: Cross multiply
    462,428.52x = 693,642.80 × 130,004.52
  4. Step 4: Simplify right side
    462,428.52x = 90,176,699,265.46
  5. Step 5: Solve for x
    x = 90,176,699,265.46/462,428.52
  6. Step 6: Final answer
    x = 195,006.79

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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.