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Finding the Fourth Proportional to 407,665.32, 610,874.54 and 170,878.92

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Solution

The fourth proportional to 407,665.32, 610,874.54 and 170,878.92 is: 256,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,665.32 : 610,874.54 = 170,878.92 : x
  2. Step 2: Convert to fraction form
    407,665.32/610,874.54 = 170,878.92/x
  3. Step 3: Cross multiply
    407,665.32x = 610,874.54 × 170,878.92
  4. Step 4: Simplify right side
    407,665.32x = 104,385,581,650.70
  5. Step 5: Solve for x
    x = 104,385,581,650.70/407,665.32
  6. Step 6: Final answer
    x = 256,057.06

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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.