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Finding the Fourth Proportional to 488,124.70, 656,868.82 and 488,124.70

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Solution

The fourth proportional to 488,124.70, 656,868.82 and 488,124.70 is: 656,868.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,124.70 : 656,868.82 = 488,124.70 : x
  2. Step 2: Convert to fraction form
    488,124.70/656,868.82 = 488,124.70/x
  3. Step 3: Cross multiply
    488,124.70x = 656,868.82 × 488,124.70
  4. Step 4: Simplify right side
    488,124.70x = 320,633,895,701.85
  5. Step 5: Solve for x
    x = 320,633,895,701.85/488,124.70
  6. Step 6: Final answer
    x = 656,868.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.