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Finding the Fourth Proportional to 546,765.63, 820,191.28 and 147,400.30

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Solution

The fourth proportional to 546,765.63, 820,191.28 and 147,400.30 is: 221,112.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,765.63 : 820,191.28 = 147,400.30 : x
  2. Step 2: Convert to fraction form
    546,765.63/820,191.28 = 147,400.30/x
  3. Step 3: Cross multiply
    546,765.63x = 820,191.28 × 147,400.30
  4. Step 4: Simplify right side
    546,765.63x = 120,896,440,729.38
  5. Step 5: Solve for x
    x = 120,896,440,729.38/546,765.63
  6. Step 6: Final answer
    x = 221,112.00

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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.