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Finding the Fourth Proportional to 318,271.66, 439,206.12 and 175,031.70

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Solution

The fourth proportional to 318,271.66, 439,206.12 and 175,031.70 is: 241,538.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,271.66 : 439,206.12 = 175,031.70 : x
  2. Step 2: Convert to fraction form
    318,271.66/439,206.12 = 175,031.70/x
  3. Step 3: Cross multiply
    318,271.66x = 439,206.12 × 175,031.70
  4. Step 4: Simplify right side
    318,271.66x = 76,874,993,834.00
  5. Step 5: Solve for x
    x = 76,874,993,834.00/318,271.66
  6. Step 6: Final answer
    x = 241,538.92

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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.