Home / 543,938.40-815,907.60-540,001.80

Finding the Fourth Proportional to 543,938.40, 815,907.60 and 540,001.80

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Solution

The fourth proportional to 543,938.40, 815,907.60 and 540,001.80 is: 810,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,938.40 : 815,907.60 = 540,001.80 : x
  2. Step 2: Convert to fraction form
    543,938.40/815,907.60 = 540,001.80/x
  3. Step 3: Cross multiply
    543,938.40x = 815,907.60 × 540,001.80
  4. Step 4: Simplify right side
    543,938.40x = 440,591,572,633.68
  5. Step 5: Solve for x
    x = 440,591,572,633.68/543,938.40
  6. Step 6: Final answer
    x = 810,002.70

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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.