Home / 513,983.04-709,371.18-296,149.32

Finding the Fourth Proportional to 513,983.04, 709,371.18 and 296,149.32

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Solution

The fourth proportional to 513,983.04, 709,371.18 and 296,149.32 is: 408,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,983.04 : 709,371.18 = 296,149.32 : x
  2. Step 2: Convert to fraction form
    513,983.04/709,371.18 = 296,149.32/x
  3. Step 3: Cross multiply
    513,983.04x = 709,371.18 × 296,149.32
  4. Step 4: Simplify right side
    513,983.04x = 210,079,792,584.60
  5. Step 5: Solve for x
    x = 210,079,792,584.60/513,983.04
  6. Step 6: Final answer
    x = 408,729.04

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Double scale
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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.