Home / 657,167.20-987,824.40-607,400.80

Finding the Fourth Proportional to 657,167.20, 987,824.40 and 607,400.80

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Solution

The fourth proportional to 657,167.20, 987,824.40 and 607,400.80 is: 913,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,167.20 : 987,824.40 = 607,400.80 : x
  2. Step 2: Convert to fraction form
    657,167.20/987,824.40 = 607,400.80/x
  3. Step 3: Cross multiply
    657,167.20x = 987,824.40 × 607,400.80
  4. Step 4: Simplify right side
    657,167.20x = 600,005,330,819.52
  5. Step 5: Solve for x
    x = 600,005,330,819.52/657,167.20
  6. Step 6: Final answer
    x = 913,017.77

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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.