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Finding the Fourth Proportional to 502,479.65, 753,276.31 and 186,715.13

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Solution

The fourth proportional to 502,479.65, 753,276.31 and 186,715.13 is: 279,908.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,479.65 : 753,276.31 = 186,715.13 : x
  2. Step 2: Convert to fraction form
    502,479.65/753,276.31 = 186,715.13/x
  3. Step 3: Cross multiply
    502,479.65x = 753,276.31 × 186,715.13
  4. Step 4: Simplify right side
    502,479.65x = 140,648,079,914.40
  5. Step 5: Solve for x
    x = 140,648,079,914.40/502,479.65
  6. Step 6: Final answer
    x = 279,908.01

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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.