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Finding the Fourth Proportional to 317,866.27, 438,655.63 and 174,635.54

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Solution

The fourth proportional to 317,866.27, 438,655.63 and 174,635.54 is: 240,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,866.27 : 438,655.63 = 174,635.54 : x
  2. Step 2: Convert to fraction form
    317,866.27/438,655.63 = 174,635.54/x
  3. Step 3: Cross multiply
    317,866.27x = 438,655.63 × 174,635.54
  4. Step 4: Simplify right side
    317,866.27x = 76,604,860,189.22
  5. Step 5: Solve for x
    x = 76,604,860,189.22/317,866.27
  6. Step 6: Final answer
    x = 240,997.14

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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.