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Finding the Fourth Proportional to 508,385.16, 761,648.27 and 238,017.29

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Solution

The fourth proportional to 508,385.16, 761,648.27 and 238,017.29 is: 356,590.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,385.16 : 761,648.27 = 238,017.29 : x
  2. Step 2: Convert to fraction form
    508,385.16/761,648.27 = 238,017.29/x
  3. Step 3: Cross multiply
    508,385.16x = 761,648.27 × 238,017.29
  4. Step 4: Simplify right side
    508,385.16x = 181,285,452,160.26
  5. Step 5: Solve for x
    x = 181,285,452,160.26/508,385.16
  6. Step 6: Final answer
    x = 356,590.76

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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.