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Finding the Fourth Proportional to 282,790.89, 390,310.89 and 179,358.12

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Solution

The fourth proportional to 282,790.89, 390,310.89 and 179,358.12 is: 247,551.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,790.89 : 390,310.89 = 179,358.12 : x
  2. Step 2: Convert to fraction form
    282,790.89/390,310.89 = 179,358.12/x
  3. Step 3: Cross multiply
    282,790.89x = 390,310.89 × 179,358.12
  4. Step 4: Simplify right side
    282,790.89x = 70,005,427,445.93
  5. Step 5: Solve for x
    x = 70,005,427,445.93/282,790.89
  6. Step 6: Final answer
    x = 247,551.92

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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.