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Finding the Fourth Proportional to 364,065.80, 546,098.70 and 287,958.20

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Solution

The fourth proportional to 364,065.80, 546,098.70 and 287,958.20 is: 431,937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,065.80 : 546,098.70 = 287,958.20 : x
  2. Step 2: Convert to fraction form
    364,065.80/546,098.70 = 287,958.20/x
  3. Step 3: Cross multiply
    364,065.80x = 546,098.70 × 287,958.20
  4. Step 4: Simplify right side
    364,065.80x = 157,253,598,674.34
  5. Step 5: Solve for x
    x = 157,253,598,674.34/364,065.80
  6. Step 6: Final answer
    x = 431,937.30

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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.