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Finding the Fourth Proportional to 410,615.70, 615,923.55 and 363,959.70

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Solution

The fourth proportional to 410,615.70, 615,923.55 and 363,959.70 is: 545,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,615.70 : 615,923.55 = 363,959.70 : x
  2. Step 2: Convert to fraction form
    410,615.70/615,923.55 = 363,959.70/x
  3. Step 3: Cross multiply
    410,615.70x = 615,923.55 × 363,959.70
  4. Step 4: Simplify right side
    410,615.70x = 224,171,350,480.94
  5. Step 5: Solve for x
    x = 224,171,350,480.94/410,615.70
  6. Step 6: Final answer
    x = 545,939.55

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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.