Home / 666,130.39-999,188.29-266,864.38

Finding the Fourth Proportional to 666,130.39, 999,188.29 and 266,864.38

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Solution

The fourth proportional to 666,130.39, 999,188.29 and 266,864.38 is: 400,293.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,130.39 : 999,188.29 = 266,864.38 : x
  2. Step 2: Convert to fraction form
    666,130.39/999,188.29 = 266,864.38/x
  3. Step 3: Cross multiply
    666,130.39x = 999,188.29 × 266,864.38
  4. Step 4: Simplify right side
    666,130.39x = 266,647,761,349.72
  5. Step 5: Solve for x
    x = 266,647,761,349.72/666,130.39
  6. Step 6: Final answer
    x = 400,293.65

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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.