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Finding the Fourth Proportional to 410,100.40, 615,806.70 and 310,373.20

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Solution

The fourth proportional to 410,100.40, 615,806.70 and 310,373.20 is: 466,056.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,100.40 : 615,806.70 = 310,373.20 : x
  2. Step 2: Convert to fraction form
    410,100.40/615,806.70 = 310,373.20/x
  3. Step 3: Cross multiply
    410,100.40x = 615,806.70 × 310,373.20
  4. Step 4: Simplify right side
    410,100.40x = 191,129,896,060.44
  5. Step 5: Solve for x
    x = 191,129,896,060.44/410,100.40
  6. Step 6: Final answer
    x = 466,056.35

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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.