Home / 869,129.28-1,201,043.52-653,895.36

Finding the Fourth Proportional to 869,129.28, 1,201,043.52 and 653,895.36

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Solution

The fourth proportional to 869,129.28, 1,201,043.52 and 653,895.36 is: 903,613.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,129.28 : 1,201,043.52 = 653,895.36 : x
  2. Step 2: Convert to fraction form
    869,129.28/1,201,043.52 = 653,895.36/x
  3. Step 3: Cross multiply
    869,129.28x = 1,201,043.52 × 653,895.36
  4. Step 4: Simplify right side
    869,129.28x = 785,356,784,886.07
  5. Step 5: Solve for x
    x = 785,356,784,886.07/869,129.28
  6. Step 6: Final answer
    x = 903,613.31

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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.