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Finding the Fourth Proportional to 508,340.30, 762,515.92 and 153,357.39

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Solution

The fourth proportional to 508,340.30, 762,515.92 and 153,357.39 is: 230,037.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,340.30 : 762,515.92 = 153,357.39 : x
  2. Step 2: Convert to fraction form
    508,340.30/762,515.92 = 153,357.39/x
  3. Step 3: Cross multiply
    508,340.30x = 762,515.92 × 153,357.39
  4. Step 4: Simplify right side
    508,340.30x = 116,937,450,941.26
  5. Step 5: Solve for x
    x = 116,937,450,941.26/508,340.30
  6. Step 6: Final answer
    x = 230,037.74

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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.