Home / 920,854.68-1,270,760.31-512,955.96

Finding the Fourth Proportional to 920,854.68, 1,270,760.31 and 512,955.96

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Solution

The fourth proportional to 920,854.68, 1,270,760.31 and 512,955.96 is: 707,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,854.68 : 1,270,760.31 = 512,955.96 : x
  2. Step 2: Convert to fraction form
    920,854.68/1,270,760.31 = 512,955.96/x
  3. Step 3: Cross multiply
    920,854.68x = 1,270,760.31 × 512,955.96
  4. Step 4: Simplify right side
    920,854.68x = 651,844,074,745.95
  5. Step 5: Solve for x
    x = 651,844,074,745.95/920,854.68
  6. Step 6: Final answer
    x = 707,868.56

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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.