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Finding the Fourth Proportional to 317,400.68, 438,011.30 and 179,585.64

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Solution

The fourth proportional to 317,400.68, 438,011.30 and 179,585.64 is: 247,827.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,400.68 : 438,011.30 = 179,585.64 : x
  2. Step 2: Convert to fraction form
    317,400.68/438,011.30 = 179,585.64/x
  3. Step 3: Cross multiply
    317,400.68x = 438,011.30 × 179,585.64
  4. Step 4: Simplify right side
    317,400.68x = 78,660,539,637.73
  5. Step 5: Solve for x
    x = 78,660,539,637.73/317,400.68
  6. Step 6: Final answer
    x = 247,827.26

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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.