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Finding the Fourth Proportional to 679,253.94, 938,192.54 and 495,201.04

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Solution

The fourth proportional to 679,253.94, 938,192.54 and 495,201.04 is: 683,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,253.94 : 938,192.54 = 495,201.04 : x
  2. Step 2: Convert to fraction form
    679,253.94/938,192.54 = 495,201.04/x
  3. Step 3: Cross multiply
    679,253.94x = 938,192.54 × 495,201.04
  4. Step 4: Simplify right side
    679,253.94x = 464,593,921,528.24
  5. Step 5: Solve for x
    x = 464,593,921,528.24/679,253.94
  6. Step 6: Final answer
    x = 683,976.78

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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.