Home / 200,407.01-276,428.61-128,877.53

Finding the Fourth Proportional to 200,407.01, 276,428.61 and 128,877.53

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Solution

The fourth proportional to 200,407.01, 276,428.61 and 128,877.53 is: 177,765.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,407.01 : 276,428.61 = 128,877.53 : x
  2. Step 2: Convert to fraction form
    200,407.01/276,428.61 = 128,877.53/x
  3. Step 3: Cross multiply
    200,407.01x = 276,428.61 × 128,877.53
  4. Step 4: Simplify right side
    200,407.01x = 35,625,435,095.99
  5. Step 5: Solve for x
    x = 35,625,435,095.99/200,407.01
  6. Step 6: Final answer
    x = 177,765.42

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1.5x scale

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.