Home / 1,284,272.80-1,772,292.08-711,312.82

Finding the Fourth Proportional to 1,284,272.80, 1,772,292.08 and 711,312.82

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Solution

The fourth proportional to 1,284,272.80, 1,772,292.08 and 711,312.82 is: 981,609.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,272.80 : 1,772,292.08 = 711,312.82 : x
  2. Step 2: Convert to fraction form
    1,284,272.80/1,772,292.08 = 711,312.82/x
  3. Step 3: Cross multiply
    1,284,272.80x = 1,772,292.08 × 711,312.82
  4. Step 4: Simplify right side
    1,284,272.80x = 1,260,654,077,288.47
  5. Step 5: Solve for x
    x = 1,260,654,077,288.47/1,284,272.80
  6. Step 6: Final answer
    x = 981,609.26

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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.