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Finding the Fourth Proportional to 881,710.88, 1,216,773.12 and 479,311.52

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Solution

The fourth proportional to 881,710.88, 1,216,773.12 and 479,311.52 is: 661,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,710.88 : 1,216,773.12 = 479,311.52 : x
  2. Step 2: Convert to fraction form
    881,710.88/1,216,773.12 = 479,311.52/x
  3. Step 3: Cross multiply
    881,710.88x = 1,216,773.12 × 479,311.52
  4. Step 4: Simplify right side
    881,710.88x = 583,213,373,642.34
  5. Step 5: Solve for x
    x = 583,213,373,642.34/881,710.88
  6. Step 6: Final answer
    x = 661,456.48

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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.