Home / 513,628.20-770,442.30-233,145.45

Finding the Fourth Proportional to 513,628.20, 770,442.30 and 233,145.45

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Solution

The fourth proportional to 513,628.20, 770,442.30 and 233,145.45 is: 349,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,628.20 : 770,442.30 = 233,145.45 : x
  2. Step 2: Convert to fraction form
    513,628.20/770,442.30 = 233,145.45/x
  3. Step 3: Cross multiply
    513,628.20x = 770,442.30 × 233,145.45
  4. Step 4: Simplify right side
    513,628.20x = 179,625,116,732.54
  5. Step 5: Solve for x
    x = 179,625,116,732.54/513,628.20
  6. Step 6: Final answer
    x = 349,718.18

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Double scale
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Similar ratio
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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.