Home / 421,983.90-582,239.91-249,815.34

Finding the Fourth Proportional to 421,983.90, 582,239.91 and 249,815.34

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Solution

The fourth proportional to 421,983.90, 582,239.91 and 249,815.34 is: 344,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,983.90 : 582,239.91 = 249,815.34 : x
  2. Step 2: Convert to fraction form
    421,983.90/582,239.91 = 249,815.34/x
  3. Step 3: Cross multiply
    421,983.90x = 582,239.91 × 249,815.34
  4. Step 4: Simplify right side
    421,983.90x = 145,452,461,078.22
  5. Step 5: Solve for x
    x = 145,452,461,078.22/421,983.90
  6. Step 6: Final answer
    x = 344,687.23

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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.