Home / 439,977.15-607,177.10-287,113.14

Finding the Fourth Proportional to 439,977.15, 607,177.10 and 287,113.14

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Solution

The fourth proportional to 439,977.15, 607,177.10 and 287,113.14 is: 396,221.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,977.15 : 607,177.10 = 287,113.14 : x
  2. Step 2: Convert to fraction form
    439,977.15/607,177.10 = 287,113.14/x
  3. Step 3: Cross multiply
    439,977.15x = 607,177.10 × 287,113.14
  4. Step 4: Simplify right side
    439,977.15x = 174,328,522,281.53
  5. Step 5: Solve for x
    x = 174,328,522,281.53/439,977.15
  6. Step 6: Final answer
    x = 396,221.76

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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.