Home / 691,025.93-953,648.25-404,638.28

Finding the Fourth Proportional to 691,025.93, 953,648.25 and 404,638.28

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Solution

The fourth proportional to 691,025.93, 953,648.25 and 404,638.28 is: 558,419.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,025.93 : 953,648.25 = 404,638.28 : x
  2. Step 2: Convert to fraction form
    691,025.93/953,648.25 = 404,638.28/x
  3. Step 3: Cross multiply
    691,025.93x = 953,648.25 × 404,638.28
  4. Step 4: Simplify right side
    691,025.93x = 385,882,587,605.01
  5. Step 5: Solve for x
    x = 385,882,587,605.01/691,025.93
  6. Step 6: Final answer
    x = 558,419.84

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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.