Home / 540,777.47-811,185.03-185,788.89

Finding the Fourth Proportional to 540,777.47, 811,185.03 and 185,788.89

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Solution

The fourth proportional to 540,777.47, 811,185.03 and 185,788.89 is: 278,689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,777.47 : 811,185.03 = 185,788.89 : x
  2. Step 2: Convert to fraction form
    540,777.47/811,185.03 = 185,788.89/x
  3. Step 3: Cross multiply
    540,777.47x = 811,185.03 × 185,788.89
  4. Step 4: Simplify right side
    540,777.47x = 150,709,166,308.32
  5. Step 5: Solve for x
    x = 150,709,166,308.32/540,777.47
  6. Step 6: Final answer
    x = 278,689.81

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Similar ratio
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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.