Home / 437,982.20-656,971.78-105,558.20

Finding the Fourth Proportional to 437,982.20, 656,971.78 and 105,558.20

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Solution

The fourth proportional to 437,982.20, 656,971.78 and 105,558.20 is: 158,336.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,982.20 : 656,971.78 = 105,558.20 : x
  2. Step 2: Convert to fraction form
    437,982.20/656,971.78 = 105,558.20/x
  3. Step 3: Cross multiply
    437,982.20x = 656,971.78 × 105,558.20
  4. Step 4: Simplify right side
    437,982.20x = 69,348,758,547.60
  5. Step 5: Solve for x
    x = 69,348,758,547.60/437,982.20
  6. Step 6: Final answer
    x = 158,336.93

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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.