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Finding the Fourth Proportional to 418,000.46, 626,877.59 and 118,507.19

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Solution

The fourth proportional to 418,000.46, 626,877.59 and 118,507.19 is: 177,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,000.46 : 626,877.59 = 118,507.19 : x
  2. Step 2: Convert to fraction form
    418,000.46/626,877.59 = 118,507.19/x
  3. Step 3: Cross multiply
    418,000.46x = 626,877.59 × 118,507.19
  4. Step 4: Simplify right side
    418,000.46x = 74,289,497,937.95
  5. Step 5: Solve for x
    x = 74,289,497,937.95/418,000.46
  6. Step 6: Final answer
    x = 177,725.88

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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.