Home / 905,143.71-1,248,959.55-523,096.77

Finding the Fourth Proportional to 905,143.71, 1,248,959.55 and 523,096.77

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Solution

The fourth proportional to 905,143.71, 1,248,959.55 and 523,096.77 is: 721,793.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,143.71 : 1,248,959.55 = 523,096.77 : x
  2. Step 2: Convert to fraction form
    905,143.71/1,248,959.55 = 523,096.77/x
  3. Step 3: Cross multiply
    905,143.71x = 1,248,959.55 × 523,096.77
  4. Step 4: Simplify right side
    905,143.71x = 653,326,706,465.65
  5. Step 5: Solve for x
    x = 653,326,706,465.65/905,143.71
  6. Step 6: Final answer
    x = 721,793.35

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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.