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Finding the Fourth Proportional to 410,859.90, 615,123.45 and 410,859.90

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Solution

The fourth proportional to 410,859.90, 615,123.45 and 410,859.90 is: 615,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,859.90 : 615,123.45 = 410,859.90 : x
  2. Step 2: Convert to fraction form
    410,859.90/615,123.45 = 410,859.90/x
  3. Step 3: Cross multiply
    410,859.90x = 615,123.45 × 410,859.90
  4. Step 4: Simplify right side
    410,859.90x = 252,729,559,154.66
  5. Step 5: Solve for x
    x = 252,729,559,154.66/410,859.90
  6. Step 6: Final answer
    x = 615,123.45

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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.