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Finding the Fourth Proportional to 488,595.20, 733,065.60 and 471,315.20

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Solution

The fourth proportional to 488,595.20, 733,065.60 and 471,315.20 is: 707,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,595.20 : 733,065.60 = 471,315.20 : x
  2. Step 2: Convert to fraction form
    488,595.20/733,065.60 = 471,315.20/x
  3. Step 3: Cross multiply
    488,595.20x = 733,065.60 × 471,315.20
  4. Step 4: Simplify right side
    488,595.20x = 345,504,959,877.12
  5. Step 5: Solve for x
    x = 345,504,959,877.12/488,595.20
  6. Step 6: Final answer
    x = 707,139.49

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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.