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Finding the Fourth Proportional to 402,158.20, 603,318.30 and 117,848.20

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Solution

The fourth proportional to 402,158.20, 603,318.30 and 117,848.20 is: 176,796.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,158.20 : 603,318.30 = 117,848.20 : x
  2. Step 2: Convert to fraction form
    402,158.20/603,318.30 = 117,848.20/x
  3. Step 3: Cross multiply
    402,158.20x = 603,318.30 × 117,848.20
  4. Step 4: Simplify right side
    402,158.20x = 71,099,975,682.06
  5. Step 5: Solve for x
    x = 71,099,975,682.06/402,158.20
  6. Step 6: Final answer
    x = 176,796.04

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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.