Home / 903,235.15-1,246,519.62-521,286.53

Finding the Fourth Proportional to 903,235.15, 1,246,519.62 and 521,286.53

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Solution

The fourth proportional to 903,235.15, 1,246,519.62 and 521,286.53 is: 719,407.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,235.15 : 1,246,519.62 = 521,286.53 : x
  2. Step 2: Convert to fraction form
    903,235.15/1,246,519.62 = 521,286.53/x
  3. Step 3: Cross multiply
    903,235.15x = 1,246,519.62 × 521,286.53
  4. Step 4: Simplify right side
    903,235.15x = 649,793,884,680.29
  5. Step 5: Solve for x
    x = 649,793,884,680.29/903,235.15
  6. Step 6: Final answer
    x = 719,407.22

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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.