Home / 741,785.15-1,023,685.79-419,488.79

Finding the Fourth Proportional to 741,785.15, 1,023,685.79 and 419,488.79

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Solution

The fourth proportional to 741,785.15, 1,023,685.79 and 419,488.79 is: 578,907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,785.15 : 1,023,685.79 = 419,488.79 : x
  2. Step 2: Convert to fraction form
    741,785.15/1,023,685.79 = 419,488.79/x
  3. Step 3: Cross multiply
    741,785.15x = 1,023,685.79 × 419,488.79
  4. Step 4: Simplify right side
    741,785.15x = 429,424,706,171.42
  5. Step 5: Solve for x
    x = 429,424,706,171.42/741,785.15
  6. Step 6: Final answer
    x = 578,907.13

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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.