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Finding the Fourth Proportional to 317,482.13, 438,124.14 and 174,244.57

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Solution

The fourth proportional to 317,482.13, 438,124.14 and 174,244.57 is: 240,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,482.13 : 438,124.14 = 174,244.57 : x
  2. Step 2: Convert to fraction form
    317,482.13/438,124.14 = 174,244.57/x
  3. Step 3: Cross multiply
    317,482.13x = 438,124.14 × 174,244.57
  4. Step 4: Simplify right side
    317,482.13x = 76,340,751,285.61
  5. Step 5: Solve for x
    x = 76,340,751,285.61/317,482.13
  6. Step 6: Final answer
    x = 240,456.84

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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.