Home / 723,808.60-1,083,639.30-640,864.60

Finding the Fourth Proportional to 723,808.60, 1,083,639.30 and 640,864.60

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Solution

The fourth proportional to 723,808.60, 1,083,639.30 and 640,864.60 is: 959,460.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,808.60 : 1,083,639.30 = 640,864.60 : x
  2. Step 2: Convert to fraction form
    723,808.60/1,083,639.30 = 640,864.60/x
  3. Step 3: Cross multiply
    723,808.60x = 1,083,639.30 × 640,864.60
  4. Step 4: Simplify right side
    723,808.60x = 694,466,066,538.78
  5. Step 5: Solve for x
    x = 694,466,066,538.78/723,808.60
  6. Step 6: Final answer
    x = 959,460.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.