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Finding the Fourth Proportional to 317,618.40, 476,427.60 and 170,162.40

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Solution

The fourth proportional to 317,618.40, 476,427.60 and 170,162.40 is: 255,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,618.40 : 476,427.60 = 170,162.40 : x
  2. Step 2: Convert to fraction form
    317,618.40/476,427.60 = 170,162.40/x
  3. Step 3: Cross multiply
    317,618.40x = 476,427.60 × 170,162.40
  4. Step 4: Simplify right side
    317,618.40x = 81,070,063,842.24
  5. Step 5: Solve for x
    x = 81,070,063,842.24/317,618.40
  6. Step 6: Final answer
    x = 255,243.60

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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.