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Finding the Fourth Proportional to 546,392.90, 819,515.54 and 147,057.64

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Solution

The fourth proportional to 546,392.90, 819,515.54 and 147,057.64 is: 220,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,392.90 : 819,515.54 = 147,057.64 : x
  2. Step 2: Convert to fraction form
    546,392.90/819,515.54 = 147,057.64/x
  3. Step 3: Cross multiply
    546,392.90x = 819,515.54 × 147,057.64
  4. Step 4: Simplify right side
    546,392.90x = 120,516,021,037.23
  5. Step 5: Solve for x
    x = 120,516,021,037.23/546,392.90
  6. Step 6: Final answer
    x = 220,566.59

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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.