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Finding the Fourth Proportional to 318,347.49, 477,356.91 and 93,678.73

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Solution

The fourth proportional to 318,347.49, 477,356.91 and 93,678.73 is: 140,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,347.49 : 477,356.91 = 93,678.73 : x
  2. Step 2: Convert to fraction form
    318,347.49/477,356.91 = 93,678.73/x
  3. Step 3: Cross multiply
    318,347.49x = 477,356.91 × 93,678.73
  4. Step 4: Simplify right side
    318,347.49x = 44,718,189,085.52
  5. Step 5: Solve for x
    x = 44,718,189,085.52/318,347.49
  6. Step 6: Final answer
    x = 140,469.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.