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Finding the Fourth Proportional to 502,705.20, 753,798.60 and 186,999.60

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Solution

The fourth proportional to 502,705.20, 753,798.60 and 186,999.60 is: 280,402.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,705.20 : 753,798.60 = 186,999.60 : x
  2. Step 2: Convert to fraction form
    502,705.20/753,798.60 = 186,999.60/x
  3. Step 3: Cross multiply
    502,705.20x = 753,798.60 × 186,999.60
  4. Step 4: Simplify right side
    502,705.20x = 140,960,036,680.56
  5. Step 5: Solve for x
    x = 140,960,036,680.56/502,705.20
  6. Step 6: Final answer
    x = 280,402.98

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1.5x scale

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.