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Finding the Fourth Proportional to 1,398,199,976.06, 1,929,488,616.61 and 763,125,020.27

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Solution

The fourth proportional to 1,398,199,976.06, 1,929,488,616.61 and 763,125,020.27 is: 1,053,097,600.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,199,976.06 : 1,929,488,616.61 = 763,125,020.27 : x
  2. Step 2: Convert to fraction form
    1,398,199,976.06/1,929,488,616.61 = 763,125,020.27/x
  3. Step 3: Cross multiply
    1,398,199,976.06x = 1,929,488,616.61 × 763,125,020.27
  4. Step 4: Simplify right side
    1,398,199,976.06x = 1,472,441,039,649,685,248
  5. Step 5: Solve for x
    x = 1,472,441,039,649,685,248/1,398,199,976.06
  6. Step 6: Final answer
    x = 1,053,097,600.38

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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.