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Finding the Fourth Proportional to 317,652.64, 438,357.60 and 174,411.44

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Solution

The fourth proportional to 317,652.64, 438,357.60 and 174,411.44 is: 240,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,652.64 : 438,357.60 = 174,411.44 : x
  2. Step 2: Convert to fraction form
    317,652.64/438,357.60 = 174,411.44/x
  3. Step 3: Cross multiply
    317,652.64x = 438,357.60 × 174,411.44
  4. Step 4: Simplify right side
    317,652.64x = 76,454,580,250.94
  5. Step 5: Solve for x
    x = 76,454,580,250.94/317,652.64
  6. Step 6: Final answer
    x = 240,686.12

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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.