Home / 781,840.62-1,172,963.16-457,902.18

Finding the Fourth Proportional to 781,840.62, 1,172,963.16 and 457,902.18

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Solution

The fourth proportional to 781,840.62, 1,172,963.16 and 457,902.18 is: 686,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,840.62 : 1,172,963.16 = 457,902.18 : x
  2. Step 2: Convert to fraction form
    781,840.62/1,172,963.16 = 457,902.18/x
  3. Step 3: Cross multiply
    781,840.62x = 1,172,963.16 × 457,902.18
  4. Step 4: Simplify right side
    781,840.62x = 537,102,388,023.69
  5. Step 5: Solve for x
    x = 537,102,388,023.69/781,840.62
  6. Step 6: Final answer
    x = 686,971.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.