Home / 999,563.90-1,377,963.36-712,585.76

Finding the Fourth Proportional to 999,563.90, 1,377,963.36 and 712,585.76

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Solution

The fourth proportional to 999,563.90, 1,377,963.36 and 712,585.76 is: 982,345.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,563.90 : 1,377,963.36 = 712,585.76 : x
  2. Step 2: Convert to fraction form
    999,563.90/1,377,963.36 = 712,585.76/x
  3. Step 3: Cross multiply
    999,563.90x = 1,377,963.36 × 712,585.76
  4. Step 4: Simplify right side
    999,563.90x = 981,917,061,247.94
  5. Step 5: Solve for x
    x = 981,917,061,247.94/999,563.90
  6. Step 6: Final answer
    x = 982,345.47

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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.