Home / 511,811.40-767,717.10-227,501.40

Finding the Fourth Proportional to 511,811.40, 767,717.10 and 227,501.40

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Solution

The fourth proportional to 511,811.40, 767,717.10 and 227,501.40 is: 341,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,811.40 : 767,717.10 = 227,501.40 : x
  2. Step 2: Convert to fraction form
    511,811.40/767,717.10 = 227,501.40/x
  3. Step 3: Cross multiply
    511,811.40x = 767,717.10 × 227,501.40
  4. Step 4: Simplify right side
    511,811.40x = 174,656,715,053.94
  5. Step 5: Solve for x
    x = 174,656,715,053.94/511,811.40
  6. Step 6: Final answer
    x = 341,252.10

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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.