Home / 662,919.93-914,438.75-469,109.61

Finding the Fourth Proportional to 662,919.93, 914,438.75 and 469,109.61

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Solution

The fourth proportional to 662,919.93, 914,438.75 and 469,109.61 is: 647,094.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,919.93 : 914,438.75 = 469,109.61 : x
  2. Step 2: Convert to fraction form
    662,919.93/914,438.75 = 469,109.61/x
  3. Step 3: Cross multiply
    662,919.93x = 914,438.75 × 469,109.61
  4. Step 4: Simplify right side
    662,919.93x = 428,972,005,381.39
  5. Step 5: Solve for x
    x = 428,972,005,381.39/662,919.93
  6. Step 6: Final answer
    x = 647,094.75

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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.