Home / 905,050.36-1,248,688.56-522,937.72

Finding the Fourth Proportional to 905,050.36, 1,248,688.56 and 522,937.72

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Solution

The fourth proportional to 905,050.36, 1,248,688.56 and 522,937.72 is: 721,491.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,050.36 : 1,248,688.56 = 522,937.72 : x
  2. Step 2: Convert to fraction form
    905,050.36/1,248,688.56 = 522,937.72/x
  3. Step 3: Cross multiply
    905,050.36x = 1,248,688.56 × 522,937.72
  4. Step 4: Simplify right side
    905,050.36x = 652,986,348,556.48
  5. Step 5: Solve for x
    x = 652,986,348,556.48/905,050.36
  6. Step 6: Final answer
    x = 721,491.73

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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.