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Finding the Fourth Proportional to 318,595.46, 439,661.85 and 175,354.47

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Solution

The fourth proportional to 318,595.46, 439,661.85 and 175,354.47 is: 241,989.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,595.46 : 439,661.85 = 175,354.47 : x
  2. Step 2: Convert to fraction form
    318,595.46/439,661.85 = 175,354.47/x
  3. Step 3: Cross multiply
    318,595.46x = 439,661.85 × 175,354.47
  4. Step 4: Simplify right side
    318,595.46x = 77,096,670,685.97
  5. Step 5: Solve for x
    x = 77,096,670,685.97/318,595.46
  6. Step 6: Final answer
    x = 241,989.24

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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.