Home / 983,170.78-1,356,801.33-553,466.59

Finding the Fourth Proportional to 983,170.78, 1,356,801.33 and 553,466.59

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Solution

The fourth proportional to 983,170.78, 1,356,801.33 and 553,466.59 is: 763,798.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,170.78 : 1,356,801.33 = 553,466.59 : x
  2. Step 2: Convert to fraction form
    983,170.78/1,356,801.33 = 553,466.59/x
  3. Step 3: Cross multiply
    983,170.78x = 1,356,801.33 × 553,466.59
  4. Step 4: Simplify right side
    983,170.78x = 750,944,204,106.06
  5. Step 5: Solve for x
    x = 750,944,204,106.06/983,170.78
  6. Step 6: Final answer
    x = 763,798.34

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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.