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Finding the Fourth Proportional to 543,889.60, 815,834.40 and 532,225.60

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Solution

The fourth proportional to 543,889.60, 815,834.40 and 532,225.60 is: 798,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,889.60 : 815,834.40 = 532,225.60 : x
  2. Step 2: Convert to fraction form
    543,889.60/815,834.40 = 532,225.60/x
  3. Step 3: Cross multiply
    543,889.60x = 815,834.40 × 532,225.60
  4. Step 4: Simplify right side
    543,889.60x = 434,207,953,040.64
  5. Step 5: Solve for x
    x = 434,207,953,040.64/543,889.60
  6. Step 6: Final answer
    x = 798,338.40

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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.