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Finding the Fourth Proportional to 373,298.20, 559,947.30 and 314,978.20

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Solution

The fourth proportional to 373,298.20, 559,947.30 and 314,978.20 is: 472,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,298.20 : 559,947.30 = 314,978.20 : x
  2. Step 2: Convert to fraction form
    373,298.20/559,947.30 = 314,978.20/x
  3. Step 3: Cross multiply
    373,298.20x = 559,947.30 × 314,978.20
  4. Step 4: Simplify right side
    373,298.20x = 176,371,192,648.86
  5. Step 5: Solve for x
    x = 176,371,192,648.86/373,298.20
  6. Step 6: Final answer
    x = 472,467.30

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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.