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Finding the Fourth Proportional to 502,153.28, 692,969.16 and 272,708.96

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Solution

The fourth proportional to 502,153.28, 692,969.16 and 272,708.96 is: 376,337.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,153.28 : 692,969.16 = 272,708.96 : x
  2. Step 2: Convert to fraction form
    502,153.28/692,969.16 = 272,708.96/x
  3. Step 3: Cross multiply
    502,153.28x = 692,969.16 × 272,708.96
  4. Step 4: Simplify right side
    502,153.28x = 188,978,898,935.67
  5. Step 5: Solve for x
    x = 188,978,898,935.67/502,153.28
  6. Step 6: Final answer
    x = 376,337.08

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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.