Home / 414,440.16-572,112.56-318,911.20

Finding the Fourth Proportional to 414,440.16, 572,112.56 and 318,911.20

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Solution

The fourth proportional to 414,440.16, 572,112.56 and 318,911.20 is: 440,239.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,440.16 : 572,112.56 = 318,911.20 : x
  2. Step 2: Convert to fraction form
    414,440.16/572,112.56 = 318,911.20/x
  3. Step 3: Cross multiply
    414,440.16x = 572,112.56 × 318,911.20
  4. Step 4: Simplify right side
    414,440.16x = 182,453,103,044.67
  5. Step 5: Solve for x
    x = 182,453,103,044.67/414,440.16
  6. Step 6: Final answer
    x = 440,239.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.