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Finding the Fourth Proportional to 318,070.56, 438,945.84 and 174,834.48

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Solution

The fourth proportional to 318,070.56, 438,945.84 and 174,834.48 is: 241,276.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,070.56 : 438,945.84 = 174,834.48 : x
  2. Step 2: Convert to fraction form
    318,070.56/438,945.84 = 174,834.48/x
  3. Step 3: Cross multiply
    318,070.56x = 438,945.84 × 174,834.48
  4. Step 4: Simplify right side
    318,070.56x = 76,742,867,684.56
  5. Step 5: Solve for x
    x = 76,742,867,684.56/318,070.56
  6. Step 6: Final answer
    x = 241,276.24

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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.