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Finding the Fourth Proportional to 334,510.20, 501,765.30 and 318,958.20

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Solution

The fourth proportional to 334,510.20, 501,765.30 and 318,958.20 is: 478,437.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,510.20 : 501,765.30 = 318,958.20 : x
  2. Step 2: Convert to fraction form
    334,510.20/501,765.30 = 318,958.20/x
  3. Step 3: Cross multiply
    334,510.20x = 501,765.30 × 318,958.20
  4. Step 4: Simplify right side
    334,510.20x = 160,042,156,910.46
  5. Step 5: Solve for x
    x = 160,042,156,910.46/334,510.20
  6. Step 6: Final answer
    x = 478,437.30

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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.