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Finding the Fourth Proportional to 722,285.20, 996,422.72 and 467,718.40

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Solution

The fourth proportional to 722,285.20, 996,422.72 and 467,718.40 is: 645,237.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,285.20 : 996,422.72 = 467,718.40 : x
  2. Step 2: Convert to fraction form
    722,285.20/996,422.72 = 467,718.40/x
  3. Step 3: Cross multiply
    722,285.20x = 996,422.72 × 467,718.40
  4. Step 4: Simplify right side
    722,285.20x = 466,045,240,322.05
  5. Step 5: Solve for x
    x = 466,045,240,322.05/722,285.20
  6. Step 6: Final answer
    x = 645,237.14

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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.