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Finding the Fourth Proportional to 546,378.92, 754,012.20 and 301,391.80

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Solution

The fourth proportional to 546,378.92, 754,012.20 and 301,391.80 is: 415,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,378.92 : 754,012.20 = 301,391.80 : x
  2. Step 2: Convert to fraction form
    546,378.92/754,012.20 = 301,391.80/x
  3. Step 3: Cross multiply
    546,378.92x = 754,012.20 × 301,391.80
  4. Step 4: Simplify right side
    546,378.92x = 227,253,094,179.96
  5. Step 5: Solve for x
    x = 227,253,094,179.96/546,378.92
  6. Step 6: Final answer
    x = 415,925.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.