Home / 1,131,282.76-1,561,077.28-666,062.68

Finding the Fourth Proportional to 1,131,282.76, 1,561,077.28 and 666,062.68

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Solution

The fourth proportional to 1,131,282.76, 1,561,077.28 and 666,062.68 is: 919,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,282.76 : 1,561,077.28 = 666,062.68 : x
  2. Step 2: Convert to fraction form
    1,131,282.76/1,561,077.28 = 666,062.68/x
  3. Step 3: Cross multiply
    1,131,282.76x = 1,561,077.28 × 666,062.68
  4. Step 4: Simplify right side
    1,131,282.76x = 1,039,775,316,803.91
  5. Step 5: Solve for x
    x = 1,039,775,316,803.91/1,131,282.76
  6. Step 6: Final answer
    x = 919,111.78

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Double scale
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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.