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Finding the Fourth Proportional to 318,032.70, 438,888.96 and 174,791.76

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Solution

The fourth proportional to 318,032.70, 438,888.96 and 174,791.76 is: 241,214.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,032.70 : 438,888.96 = 174,791.76 : x
  2. Step 2: Convert to fraction form
    318,032.70/438,888.96 = 174,791.76/x
  3. Step 3: Cross multiply
    318,032.70x = 438,888.96 × 174,791.76
  4. Step 4: Simplify right side
    318,032.70x = 76,714,173,762.97
  5. Step 5: Solve for x
    x = 76,714,173,762.97/318,032.70
  6. Step 6: Final answer
    x = 241,214.74

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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.