Home / 1,280,616.61-1,767,251.55-707,656.79

Finding the Fourth Proportional to 1,280,616.61, 1,767,251.55 and 707,656.79

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Solution

The fourth proportional to 1,280,616.61, 1,767,251.55 and 707,656.79 is: 976,566.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,616.61 : 1,767,251.55 = 707,656.79 : x
  2. Step 2: Convert to fraction form
    1,280,616.61/1,767,251.55 = 707,656.79/x
  3. Step 3: Cross multiply
    1,280,616.61x = 1,767,251.55 × 707,656.79
  4. Step 4: Simplify right side
    1,280,616.61x = 1,250,607,550,159.27
  5. Step 5: Solve for x
    x = 1,250,607,550,159.27/1,280,616.61
  6. Step 6: Final answer
    x = 976,566.71

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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.