Home / 857,633.61-1,183,335.89-513,338.73

Finding the Fourth Proportional to 857,633.61, 1,183,335.89 and 513,338.73

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Solution

The fourth proportional to 857,633.61, 1,183,335.89 and 513,338.73 is: 708,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,633.61 : 1,183,335.89 = 513,338.73 : x
  2. Step 2: Convert to fraction form
    857,633.61/1,183,335.89 = 513,338.73/x
  3. Step 3: Cross multiply
    857,633.61x = 1,183,335.89 × 513,338.73
  4. Step 4: Simplify right side
    857,633.61x = 607,452,142,936.02
  5. Step 5: Solve for x
    x = 607,452,142,936.02/857,633.61
  6. Step 6: Final answer
    x = 708,288.64

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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.