Home / 437,982.80-656,609.70-185,457.20

Finding the Fourth Proportional to 437,982.80, 656,609.70 and 185,457.20

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Solution

The fourth proportional to 437,982.80, 656,609.70 and 185,457.20 is: 278,031.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,982.80 : 656,609.70 = 185,457.20 : x
  2. Step 2: Convert to fraction form
    437,982.80/656,609.70 = 185,457.20/x
  3. Step 3: Cross multiply
    437,982.80x = 656,609.70 × 185,457.20
  4. Step 4: Simplify right side
    437,982.80x = 121,772,996,454.84
  5. Step 5: Solve for x
    x = 121,772,996,454.84/437,982.80
  6. Step 6: Final answer
    x = 278,031.46

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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.