Home / 623,477.28-933,731.38-398,139.74

Finding the Fourth Proportional to 623,477.28, 933,731.38 and 398,139.74

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Solution

The fourth proportional to 623,477.28, 933,731.38 and 398,139.74 is: 596,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,477.28 : 933,731.38 = 398,139.74 : x
  2. Step 2: Convert to fraction form
    623,477.28/933,731.38 = 398,139.74/x
  3. Step 3: Cross multiply
    623,477.28x = 933,731.38 × 398,139.74
  4. Step 4: Simplify right side
    623,477.28x = 371,755,568,863.04
  5. Step 5: Solve for x
    x = 371,755,568,863.04/623,477.28
  6. Step 6: Final answer
    x = 596,261.61

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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.