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Finding the Fourth Proportional to 873,102,867.60, 1,309,654,301.40 and 755,760,694.80

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Solution

The fourth proportional to 873,102,867.60, 1,309,654,301.40 and 755,760,694.80 is: 1,133,641,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,102,867.60 : 1,309,654,301.40 = 755,760,694.80 : x
  2. Step 2: Convert to fraction form
    873,102,867.60/1,309,654,301.40 = 755,760,694.80/x
  3. Step 3: Cross multiply
    873,102,867.60x = 1,309,654,301.40 × 755,760,694.80
  4. Step 4: Simplify right side
    873,102,867.60x = 989,785,244,773,872,640
  5. Step 5: Solve for x
    x = 989,785,244,773,872,640/873,102,867.60
  6. Step 6: Final answer
    x = 1,133,641,042.20

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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.