Home / 1,353,053.40-1,866,505.71-836,642.17

Finding the Fourth Proportional to 1,353,053.40, 1,866,505.71 and 836,642.17

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Solution

The fourth proportional to 1,353,053.40, 1,866,505.71 and 836,642.17 is: 1,154,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,053.40 : 1,866,505.71 = 836,642.17 : x
  2. Step 2: Convert to fraction form
    1,353,053.40/1,866,505.71 = 836,642.17/x
  3. Step 3: Cross multiply
    1,353,053.40x = 1,866,505.71 × 836,642.17
  4. Step 4: Simplify right side
    1,353,053.40x = 1,561,597,387,531.79
  5. Step 5: Solve for x
    x = 1,561,597,387,531.79/1,353,053.40
  6. Step 6: Final answer
    x = 1,154,128.42

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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.