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Finding the Fourth Proportional to 493,765.98, 681,209.19 and 365,013.57

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Solution

The fourth proportional to 493,765.98, 681,209.19 and 365,013.57 is: 503,579.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,765.98 : 681,209.19 = 365,013.57 : x
  2. Step 2: Convert to fraction form
    493,765.98/681,209.19 = 365,013.57/x
  3. Step 3: Cross multiply
    493,765.98x = 681,209.19 × 365,013.57
  4. Step 4: Simplify right side
    493,765.98x = 248,650,598,358.71
  5. Step 5: Solve for x
    x = 248,650,598,358.71/493,765.98
  6. Step 6: Final answer
    x = 503,579.85

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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.