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Finding the Fourth Proportional to 473,293.71, 709,779.62 and 153,358.85

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Solution

The fourth proportional to 473,293.71, 709,779.62 and 153,358.85 is: 229,986.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,293.71 : 709,779.62 = 153,358.85 : x
  2. Step 2: Convert to fraction form
    473,293.71/709,779.62 = 153,358.85/x
  3. Step 3: Cross multiply
    473,293.71x = 709,779.62 × 153,358.85
  4. Step 4: Simplify right side
    473,293.71x = 108,850,981,960.95
  5. Step 5: Solve for x
    x = 108,850,981,960.95/473,293.71
  6. Step 6: Final answer
    x = 229,986.12

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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.