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Finding the Fourth Proportional to 313,416.56, 432,514.86 and 179,280.56

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Solution

The fourth proportional to 313,416.56, 432,514.86 and 179,280.56 is: 247,407.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,416.56 : 432,514.86 = 179,280.56 : x
  2. Step 2: Convert to fraction form
    313,416.56/432,514.86 = 179,280.56/x
  3. Step 3: Cross multiply
    313,416.56x = 432,514.86 × 179,280.56
  4. Step 4: Simplify right side
    313,416.56x = 77,541,506,718.11
  5. Step 5: Solve for x
    x = 77,541,506,718.11/313,416.56
  6. Step 6: Final answer
    x = 247,407.18

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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.