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Finding the Fourth Proportional to 439,570.62, 606,727.04 and 258,340.95

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Solution

The fourth proportional to 439,570.62, 606,727.04 and 258,340.95 is: 356,580.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,570.62 : 606,727.04 = 258,340.95 : x
  2. Step 2: Convert to fraction form
    439,570.62/606,727.04 = 258,340.95/x
  3. Step 3: Cross multiply
    439,570.62x = 606,727.04 × 258,340.95
  4. Step 4: Simplify right side
    439,570.62x = 156,742,438,612.58
  5. Step 5: Solve for x
    x = 156,742,438,612.58/439,570.62
  6. Step 6: Final answer
    x = 356,580.79

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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.