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Finding the Fourth Proportional to 722,237, 996,685.44 and 416,311.36

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Solution

The fourth proportional to 722,237, 996,685.44 and 416,311.36 is: 574,508.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,237 : 996,685.44 = 416,311.36 : x
  2. Step 2: Convert to fraction form
    722,237/996,685.44 = 416,311.36/x
  3. Step 3: Cross multiply
    722,237x = 996,685.44 × 416,311.36
  4. Step 4: Simplify right side
    722,237x = 414,931,471,018.60
  5. Step 5: Solve for x
    x = 414,931,471,018.60/722,237
  6. Step 6: Final answer
    x = 574,508.74

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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.