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Finding the Fourth Proportional to 546,069.20, 819,103.80 and 357,112.40

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Solution

The fourth proportional to 546,069.20, 819,103.80 and 357,112.40 is: 535,668.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,069.20 : 819,103.80 = 357,112.40 : x
  2. Step 2: Convert to fraction form
    546,069.20/819,103.80 = 357,112.40/x
  3. Step 3: Cross multiply
    546,069.20x = 819,103.80 × 357,112.40
  4. Step 4: Simplify right side
    546,069.20x = 292,512,123,867.12
  5. Step 5: Solve for x
    x = 292,512,123,867.12/546,069.20
  6. Step 6: Final answer
    x = 535,668.60

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Similar ratio
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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.