Home / 1,165,338,671.88-1,608,148,599.39-636,691,306.80

Finding the Fourth Proportional to 1,165,338,671.88, 1,608,148,599.39 and 636,691,306.80

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Solution

The fourth proportional to 1,165,338,671.88, 1,608,148,599.39 and 636,691,306.80 is: 878,623,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165,338,671.88 : 1,608,148,599.39 = 636,691,306.80 : x
  2. Step 2: Convert to fraction form
    1,165,338,671.88/1,608,148,599.39 = 636,691,306.80/x
  3. Step 3: Cross multiply
    1,165,338,671.88x = 1,608,148,599.39 × 636,691,306.80
  4. Step 4: Simplify right side
    1,165,338,671.88x = 1,023,894,233,274,208,768
  5. Step 5: Solve for x
    x = 1,023,894,233,274,208,768/1,165,338,671.88
  6. Step 6: Final answer
    x = 878,623,749.46

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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.