Home / 738,836.16-1,019,121.12-512,399.04

Finding the Fourth Proportional to 738,836.16, 1,019,121.12 and 512,399.04

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Solution

The fourth proportional to 738,836.16, 1,019,121.12 and 512,399.04 is: 706,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,836.16 : 1,019,121.12 = 512,399.04 : x
  2. Step 2: Convert to fraction form
    738,836.16/1,019,121.12 = 512,399.04/x
  3. Step 3: Cross multiply
    738,836.16x = 1,019,121.12 × 512,399.04
  4. Step 4: Simplify right side
    738,836.16x = 522,196,683,531.73
  5. Step 5: Solve for x
    x = 522,196,683,531.73/738,836.16
  6. Step 6: Final answer
    x = 706,782.79

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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.