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Finding the Fourth Proportional to 342,948.28, 473,257.86 and 189,980.32

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Solution

The fourth proportional to 342,948.28, 473,257.86 and 189,980.32 is: 262,166.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,948.28 : 473,257.86 = 189,980.32 : x
  2. Step 2: Convert to fraction form
    342,948.28/473,257.86 = 189,980.32/x
  3. Step 3: Cross multiply
    342,948.28x = 473,257.86 × 189,980.32
  4. Step 4: Simplify right side
    342,948.28x = 89,909,679,685.32
  5. Step 5: Solve for x
    x = 89,909,679,685.32/342,948.28
  6. Step 6: Final answer
    x = 262,166.88

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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.