Home / 443,541.60-665,786.08-190,947.20

Finding the Fourth Proportional to 443,541.60, 665,786.08 and 190,947.20

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Solution

The fourth proportional to 443,541.60, 665,786.08 and 190,947.20 is: 286,624.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,541.60 : 665,786.08 = 190,947.20 : x
  2. Step 2: Convert to fraction form
    443,541.60/665,786.08 = 190,947.20/x
  3. Step 3: Cross multiply
    443,541.60x = 665,786.08 × 190,947.20
  4. Step 4: Simplify right side
    443,541.60x = 127,129,987,774.98
  5. Step 5: Solve for x
    x = 127,129,987,774.98/443,541.60
  6. Step 6: Final answer
    x = 286,624.72

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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.