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Finding the Fourth Proportional to 418,773.17, 578,009.63 and 237,591.16

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Solution

The fourth proportional to 418,773.17, 578,009.63 and 237,591.16 is: 327,934.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,773.17 : 578,009.63 = 237,591.16 : x
  2. Step 2: Convert to fraction form
    418,773.17/578,009.63 = 237,591.16/x
  3. Step 3: Cross multiply
    418,773.17x = 578,009.63 × 237,591.16
  4. Step 4: Simplify right side
    418,773.17x = 137,329,975,849.89
  5. Step 5: Solve for x
    x = 137,329,975,849.89/418,773.17
  6. Step 6: Final answer
    x = 327,934.03

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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.