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Finding the Fourth Proportional to 364,991.20, 546,565.20 and 291,263.20

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Solution

The fourth proportional to 364,991.20, 546,565.20 and 291,263.20 is: 436,159.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,991.20 : 546,565.20 = 291,263.20 : x
  2. Step 2: Convert to fraction form
    364,991.20/546,565.20 = 291,263.20/x
  3. Step 3: Cross multiply
    364,991.20x = 546,565.20 × 291,263.20
  4. Step 4: Simplify right side
    364,991.20x = 159,194,329,160.64
  5. Step 5: Solve for x
    x = 159,194,329,160.64/364,991.20
  6. Step 6: Final answer
    x = 436,159.36

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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.