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Finding the Fourth Proportional to 502,312.56, 693,191.52 and 275,972.64

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Solution

The fourth proportional to 502,312.56, 693,191.52 and 275,972.64 is: 380,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,312.56 : 693,191.52 = 275,972.64 : x
  2. Step 2: Convert to fraction form
    502,312.56/693,191.52 = 275,972.64/x
  3. Step 3: Cross multiply
    502,312.56x = 693,191.52 × 275,972.64
  4. Step 4: Simplify right side
    502,312.56x = 191,301,893,800.01
  5. Step 5: Solve for x
    x = 191,301,893,800.01/502,312.56
  6. Step 6: Final answer
    x = 380,842.35

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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.