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Finding the Fourth Proportional to 439,572.50, 606,610.05 and 238,368.66

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Solution

The fourth proportional to 439,572.50, 606,610.05 and 238,368.66 is: 328,948.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,572.50 : 606,610.05 = 238,368.66 : x
  2. Step 2: Convert to fraction form
    439,572.50/606,610.05 = 238,368.66/x
  3. Step 3: Cross multiply
    439,572.50x = 606,610.05 × 238,368.66
  4. Step 4: Simplify right side
    439,572.50x = 144,596,824,761.03
  5. Step 5: Solve for x
    x = 144,596,824,761.03/439,572.50
  6. Step 6: Final answer
    x = 328,948.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.