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Finding the Fourth Proportional to 524,490.16, 723,687.96 and 306,656.88

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Solution

The fourth proportional to 524,490.16, 723,687.96 and 306,656.88 is: 423,123.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,490.16 : 723,687.96 = 306,656.88 : x
  2. Step 2: Convert to fraction form
    524,490.16/723,687.96 = 306,656.88/x
  3. Step 3: Cross multiply
    524,490.16x = 723,687.96 × 306,656.88
  4. Step 4: Simplify right side
    524,490.16x = 221,923,891,907.17
  5. Step 5: Solve for x
    x = 221,923,891,907.17/524,490.16
  6. Step 6: Final answer
    x = 423,123.08

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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.