Home / 786,578.46-1,085,436.42-464,170.92

Finding the Fourth Proportional to 786,578.46, 1,085,436.42 and 464,170.92

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Solution

The fourth proportional to 786,578.46, 1,085,436.42 and 464,170.92 is: 640,531.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,578.46 : 1,085,436.42 = 464,170.92 : x
  2. Step 2: Convert to fraction form
    786,578.46/1,085,436.42 = 464,170.92/x
  3. Step 3: Cross multiply
    786,578.46x = 1,085,436.42 × 464,170.92
  4. Step 4: Simplify right side
    786,578.46x = 503,828,021,672.91
  5. Step 5: Solve for x
    x = 503,828,021,672.91/786,578.46
  6. Step 6: Final answer
    x = 640,531.17

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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.