Home / 526,440.82-787,583.55-398,725.10

Finding the Fourth Proportional to 526,440.82, 787,583.55 and 398,725.10

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Solution

The fourth proportional to 526,440.82, 787,583.55 and 398,725.10 is: 596,514.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,440.82 : 787,583.55 = 398,725.10 : x
  2. Step 2: Convert to fraction form
    526,440.82/787,583.55 = 398,725.10/x
  3. Step 3: Cross multiply
    526,440.82x = 787,583.55 × 398,725.10
  4. Step 4: Simplify right side
    526,440.82x = 314,029,334,821.99
  5. Step 5: Solve for x
    x = 314,029,334,821.99/526,440.82
  6. Step 6: Final answer
    x = 596,514.03

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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.