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Finding the Fourth Proportional to 502,435.30, 753,871.65 and 253,117.30

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Solution

The fourth proportional to 502,435.30, 753,871.65 and 253,117.30 is: 379,786.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,435.30 : 753,871.65 = 253,117.30 : x
  2. Step 2: Convert to fraction form
    502,435.30/753,871.65 = 253,117.30/x
  3. Step 3: Cross multiply
    502,435.30x = 753,871.65 × 253,117.30
  4. Step 4: Simplify right side
    502,435.30x = 190,817,956,594.55
  5. Step 5: Solve for x
    x = 190,817,956,594.55/502,435.30
  6. Step 6: Final answer
    x = 379,786.13

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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.