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Finding the Fourth Proportional to 722,486.76, 996,937.20 and 416,574.60

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Solution

The fourth proportional to 722,486.76, 996,937.20 and 416,574.60 is: 574,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,486.76 : 996,937.20 = 416,574.60 : x
  2. Step 2: Convert to fraction form
    722,486.76/996,937.20 = 416,574.60/x
  3. Step 3: Cross multiply
    722,486.76x = 996,937.20 × 416,574.60
  4. Step 4: Simplify right side
    722,486.76x = 415,298,715,315.12
  5. Step 5: Solve for x
    x = 415,298,715,315.12/722,486.76
  6. Step 6: Final answer
    x = 574,818.44

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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.