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Finding the Fourth Proportional to 338,779.62, 508,254.84 and 239,134.50

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Solution

The fourth proportional to 338,779.62, 508,254.84 and 239,134.50 is: 358,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,779.62 : 508,254.84 = 239,134.50 : x
  2. Step 2: Convert to fraction form
    338,779.62/508,254.84 = 239,134.50/x
  3. Step 3: Cross multiply
    338,779.62x = 508,254.84 × 239,134.50
  4. Step 4: Simplify right side
    338,779.62x = 121,541,267,035.98
  5. Step 5: Solve for x
    x = 121,541,267,035.98/338,779.62
  6. Step 6: Final answer
    x = 358,762.04

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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.