Home / 657,643.20-986,464.80-587,659.20

Finding the Fourth Proportional to 657,643.20, 986,464.80 and 587,659.20

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Solution

The fourth proportional to 657,643.20, 986,464.80 and 587,659.20 is: 881,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,643.20 : 986,464.80 = 587,659.20 : x
  2. Step 2: Convert to fraction form
    657,643.20/986,464.80 = 587,659.20/x
  3. Step 3: Cross multiply
    657,643.20x = 986,464.80 × 587,659.20
  4. Step 4: Simplify right side
    657,643.20x = 579,705,115,196.16
  5. Step 5: Solve for x
    x = 579,705,115,196.16/657,643.20
  6. Step 6: Final answer
    x = 881,488.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.