Home / 1,284,337.76-1,772,386.07-711,414.83

Finding the Fourth Proportional to 1,284,337.76, 1,772,386.07 and 711,414.83

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Solution

The fourth proportional to 1,284,337.76, 1,772,386.07 and 711,414.83 is: 981,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,337.76 : 1,772,386.07 = 711,414.83 : x
  2. Step 2: Convert to fraction form
    1,284,337.76/1,772,386.07 = 711,414.83/x
  3. Step 3: Cross multiply
    1,284,337.76x = 1,772,386.07 × 711,414.83
  4. Step 4: Simplify right side
    1,284,337.76x = 1,260,901,735,557.31
  5. Step 5: Solve for x
    x = 1,260,901,735,557.31/1,284,337.76
  6. Step 6: Final answer
    x = 981,752.45

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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.