Home / 679,253.69-938,192.20-495,200.79

Finding the Fourth Proportional to 679,253.69, 938,192.20 and 495,200.79

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Solution

The fourth proportional to 679,253.69, 938,192.20 and 495,200.79 is: 683,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,253.69 : 938,192.20 = 495,200.79 : x
  2. Step 2: Convert to fraction form
    679,253.69/938,192.20 = 495,200.79/x
  3. Step 3: Cross multiply
    679,253.69x = 938,192.20 × 495,200.79
  4. Step 4: Simplify right side
    679,253.69x = 464,593,518,611.84
  5. Step 5: Solve for x
    x = 464,593,518,611.84/679,253.69
  6. Step 6: Final answer
    x = 683,976.44

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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.