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Finding the Fourth Proportional to 318,595.91, 439,658.98 and 175,352.88

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Solution

The fourth proportional to 318,595.91, 439,658.98 and 175,352.88 is: 241,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,595.91 : 439,658.98 = 175,352.88 : x
  2. Step 2: Convert to fraction form
    318,595.91/439,658.98 = 175,352.88/x
  3. Step 3: Cross multiply
    318,595.91x = 439,658.98 × 175,352.88
  4. Step 4: Simplify right side
    318,595.91x = 77,095,467,922.48
  5. Step 5: Solve for x
    x = 77,095,467,922.48/318,595.91
  6. Step 6: Final answer
    x = 241,985.11

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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.