Home / 561,585.07-774,897.80-319,872.36

Finding the Fourth Proportional to 561,585.07, 774,897.80 and 319,872.36

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Solution

The fourth proportional to 561,585.07, 774,897.80 and 319,872.36 is: 441,372.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,585.07 : 774,897.80 = 319,872.36 : x
  2. Step 2: Convert to fraction form
    561,585.07/774,897.80 = 319,872.36/x
  3. Step 3: Cross multiply
    561,585.07x = 774,897.80 × 319,872.36
  4. Step 4: Simplify right side
    561,585.07x = 247,868,388,044.81
  5. Step 5: Solve for x
    x = 247,868,388,044.81/561,585.07
  6. Step 6: Final answer
    x = 441,372.82

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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.