Home / 649,589.07-895,988.12-423,540.75

Finding the Fourth Proportional to 649,589.07, 895,988.12 and 423,540.75

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Solution

The fourth proportional to 649,589.07, 895,988.12 and 423,540.75 is: 584,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,589.07 : 895,988.12 = 423,540.75 : x
  2. Step 2: Convert to fraction form
    649,589.07/895,988.12 = 423,540.75/x
  3. Step 3: Cross multiply
    649,589.07x = 895,988.12 × 423,540.75
  4. Step 4: Simplify right side
    649,589.07x = 379,487,480,335.89
  5. Step 5: Solve for x
    x = 379,487,480,335.89/649,589.07
  6. Step 6: Final answer
    x = 584,196.22

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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.