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Finding the Fourth Proportional to 317,735.92, 438,475.05 and 174,495.96

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Solution

The fourth proportional to 317,735.92, 438,475.05 and 174,495.96 is: 240,804.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,735.92 : 438,475.05 = 174,495.96 : x
  2. Step 2: Convert to fraction form
    317,735.92/438,475.05 = 174,495.96/x
  3. Step 3: Cross multiply
    317,735.92x = 438,475.05 × 174,495.96
  4. Step 4: Simplify right side
    317,735.92x = 76,512,124,785.80
  5. Step 5: Solve for x
    x = 76,512,124,785.80/317,735.92
  6. Step 6: Final answer
    x = 240,804.14

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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.