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Finding the Fourth Proportional to 543,614.70, 815,422.05 and 508,622.70

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Solution

The fourth proportional to 543,614.70, 815,422.05 and 508,622.70 is: 762,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,614.70 : 815,422.05 = 508,622.70 : x
  2. Step 2: Convert to fraction form
    543,614.70/815,422.05 = 508,622.70/x
  3. Step 3: Cross multiply
    543,614.70x = 815,422.05 × 508,622.70
  4. Step 4: Simplify right side
    543,614.70x = 414,742,164,710.54
  5. Step 5: Solve for x
    x = 414,742,164,710.54/543,614.70
  6. Step 6: Final answer
    x = 762,934.05

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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.