Home / 910,760.76-1,256,960.55-528,787.53

Finding the Fourth Proportional to 910,760.76, 1,256,960.55 and 528,787.53

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Solution

The fourth proportional to 910,760.76, 1,256,960.55 and 528,787.53 is: 729,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,760.76 : 1,256,960.55 = 528,787.53 : x
  2. Step 2: Convert to fraction form
    910,760.76/1,256,960.55 = 528,787.53/x
  3. Step 3: Cross multiply
    910,760.76x = 1,256,960.55 × 528,787.53
  4. Step 4: Simplify right side
    910,760.76x = 664,665,064,541.94
  5. Step 5: Solve for x
    x = 664,665,064,541.94/910,760.76
  6. Step 6: Final answer
    x = 729,791.06

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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.