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Finding the Fourth Proportional to 508,390.02, 762,565.86 and 153,394.56

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Solution

The fourth proportional to 508,390.02, 762,565.86 and 153,394.56 is: 230,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,390.02 : 762,565.86 = 153,394.56 : x
  2. Step 2: Convert to fraction form
    508,390.02/762,565.86 = 153,394.56/x
  3. Step 3: Cross multiply
    508,390.02x = 762,565.86 × 153,394.56
  4. Step 4: Simplify right side
    508,390.02x = 116,973,454,565.72
  5. Step 5: Solve for x
    x = 116,973,454,565.72/508,390.02
  6. Step 6: Final answer
    x = 230,086.06

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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.