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Finding the Fourth Proportional to 508,328.86, 762,498.76 and 153,345.95

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Solution

The fourth proportional to 508,328.86, 762,498.76 and 153,345.95 is: 230,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,328.86 : 762,498.76 = 153,345.95 : x
  2. Step 2: Convert to fraction form
    508,328.86/762,498.76 = 153,345.95/x
  3. Step 3: Cross multiply
    508,328.86x = 762,498.76 × 153,345.95
  4. Step 4: Simplify right side
    508,328.86x = 116,926,096,726.02
  5. Step 5: Solve for x
    x = 116,926,096,726.02/508,328.86
  6. Step 6: Final answer
    x = 230,020.58

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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.