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Finding the Fourth Proportional to 291,404.70, 402,157.08 and 176,694.30

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Solution

The fourth proportional to 291,404.70, 402,157.08 and 176,694.30 is: 243,849.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,404.70 : 402,157.08 = 176,694.30 : x
  2. Step 2: Convert to fraction form
    291,404.70/402,157.08 = 176,694.30/x
  3. Step 3: Cross multiply
    291,404.70x = 402,157.08 × 176,694.30
  4. Step 4: Simplify right side
    291,404.70x = 71,058,863,740.64
  5. Step 5: Solve for x
    x = 71,058,863,740.64/291,404.70
  6. Step 6: Final answer
    x = 243,849.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.