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Finding the Fourth Proportional to 508,335.67, 762,508.98 and 153,352.77

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Solution

The fourth proportional to 508,335.67, 762,508.98 and 153,352.77 is: 230,030.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,335.67 : 762,508.98 = 153,352.77 : x
  2. Step 2: Convert to fraction form
    508,335.67/762,508.98 = 153,352.77/x
  3. Step 3: Cross multiply
    508,335.67x = 762,508.98 × 153,352.77
  4. Step 4: Simplify right side
    508,335.67x = 116,932,864,232.88
  5. Step 5: Solve for x
    x = 116,932,864,232.88/508,335.67
  6. Step 6: Final answer
    x = 230,030.81

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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.