Home / 859,395.75-1,186,075.49-519,866.43

Finding the Fourth Proportional to 859,395.75, 1,186,075.49 and 519,866.43

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Solution

The fourth proportional to 859,395.75, 1,186,075.49 and 519,866.43 is: 717,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,395.75 : 1,186,075.49 = 519,866.43 : x
  2. Step 2: Convert to fraction form
    859,395.75/1,186,075.49 = 519,866.43/x
  3. Step 3: Cross multiply
    859,395.75x = 1,186,075.49 × 519,866.43
  4. Step 4: Simplify right side
    859,395.75x = 616,600,828,097.47
  5. Step 5: Solve for x
    x = 616,600,828,097.47/859,395.75
  6. Step 6: Final answer
    x = 717,481.82

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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.