Home / 426,113.17-639,230.50-141,710.02

Finding the Fourth Proportional to 426,113.17, 639,230.50 and 141,710.02

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Solution

The fourth proportional to 426,113.17, 639,230.50 and 141,710.02 is: 212,585.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,113.17 : 639,230.50 = 141,710.02 : x
  2. Step 2: Convert to fraction form
    426,113.17/639,230.50 = 141,710.02/x
  3. Step 3: Cross multiply
    426,113.17x = 639,230.50 × 141,710.02
  4. Step 4: Simplify right side
    426,113.17x = 90,585,365,518.67
  5. Step 5: Solve for x
    x = 90,585,365,518.67/426,113.17
  6. Step 6: Final answer
    x = 212,585.23

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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.