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Finding the Fourth Proportional to 318,066.77, 438,926.45 and 174,826.77

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Solution

The fourth proportional to 318,066.77, 438,926.45 and 174,826.77 is: 241,257.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,066.77 : 438,926.45 = 174,826.77 : x
  2. Step 2: Convert to fraction form
    318,066.77/438,926.45 = 174,826.77/x
  3. Step 3: Cross multiply
    318,066.77x = 438,926.45 × 174,826.77
  4. Step 4: Simplify right side
    318,066.77x = 76,736,092,646.93
  5. Step 5: Solve for x
    x = 76,736,092,646.93/318,066.77
  6. Step 6: Final answer
    x = 241,257.81

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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.