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Finding the Fourth Proportional to 317,810.62, 438,566.86 and 174,562.12

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Solution

The fourth proportional to 317,810.62, 438,566.86 and 174,562.12 is: 240,889.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,810.62 : 438,566.86 = 174,562.12 : x
  2. Step 2: Convert to fraction form
    317,810.62/438,566.86 = 174,562.12/x
  3. Step 3: Cross multiply
    317,810.62x = 438,566.86 × 174,562.12
  4. Step 4: Simplify right side
    317,810.62x = 76,557,160,843.34
  5. Step 5: Solve for x
    x = 76,557,160,843.34/317,810.62
  6. Step 6: Final answer
    x = 240,889.25

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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.