Home / 861,889.71-1,292,834.57-440,935.95

Finding the Fourth Proportional to 861,889.71, 1,292,834.57 and 440,935.95

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Solution

The fourth proportional to 861,889.71, 1,292,834.57 and 440,935.95 is: 661,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,889.71 : 1,292,834.57 = 440,935.95 : x
  2. Step 2: Convert to fraction form
    861,889.71/1,292,834.57 = 440,935.95/x
  3. Step 3: Cross multiply
    861,889.71x = 1,292,834.57 × 440,935.95
  4. Step 4: Simplify right side
    861,889.71x = 570,057,237,111.11
  5. Step 5: Solve for x
    x = 570,057,237,111.11/861,889.71
  6. Step 6: Final answer
    x = 661,403.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.