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Finding the Fourth Proportional to 318,697.48, 439,798.98 and 175,454.56

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Solution

The fourth proportional to 318,697.48, 439,798.98 and 175,454.56 is: 242,125.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,697.48 : 439,798.98 = 175,454.56 : x
  2. Step 2: Convert to fraction form
    318,697.48/439,798.98 = 175,454.56/x
  3. Step 3: Cross multiply
    318,697.48x = 439,798.98 × 175,454.56
  4. Step 4: Simplify right side
    318,697.48x = 77,164,736,524.35
  5. Step 5: Solve for x
    x = 77,164,736,524.35/318,697.48
  6. Step 6: Final answer
    x = 242,125.34

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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.