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Finding the Fourth Proportional to 418,774.31, 578,011.19 and 237,592.29

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Solution

The fourth proportional to 418,774.31, 578,011.19 and 237,592.29 is: 327,935.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,774.31 : 578,011.19 = 237,592.29 : x
  2. Step 2: Convert to fraction form
    418,774.31/578,011.19 = 237,592.29/x
  3. Step 3: Cross multiply
    418,774.31x = 578,011.19 × 237,592.29
  4. Step 4: Simplify right side
    418,774.31x = 137,331,001,089.76
  5. Step 5: Solve for x
    x = 137,331,001,089.76/418,774.31
  6. Step 6: Final answer
    x = 327,935.60

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1.5x scale

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.