Home / 621,689.28-930,719.52-462,471.36

Finding the Fourth Proportional to 621,689.28, 930,719.52 and 462,471.36

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Solution

The fourth proportional to 621,689.28, 930,719.52 and 462,471.36 is: 692,357.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,689.28 : 930,719.52 = 462,471.36 : x
  2. Step 2: Convert to fraction form
    621,689.28/930,719.52 = 462,471.36/x
  3. Step 3: Cross multiply
    621,689.28x = 930,719.52 × 462,471.36
  4. Step 4: Simplify right side
    621,689.28x = 430,431,122,192.95
  5. Step 5: Solve for x
    x = 430,431,122,192.95/621,689.28
  6. Step 6: Final answer
    x = 692,357.32

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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.