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Finding the Fourth Proportional to 722,487.76, 996,938.58 and 416,575.60

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Solution

The fourth proportional to 722,487.76, 996,938.58 and 416,575.60 is: 574,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,487.76 : 996,938.58 = 416,575.60 : x
  2. Step 2: Convert to fraction form
    722,487.76/996,938.58 = 416,575.60/x
  3. Step 3: Cross multiply
    722,487.76x = 996,938.58 × 416,575.60
  4. Step 4: Simplify right side
    722,487.76x = 415,300,287,126.65
  5. Step 5: Solve for x
    x = 415,300,287,126.65/722,487.76
  6. Step 6: Final answer
    x = 574,819.82

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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.