Home / 1,131,303.34-1,561,204.74-666,177.40

Finding the Fourth Proportional to 1,131,303.34, 1,561,204.74 and 666,177.40

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Solution

The fourth proportional to 1,131,303.34, 1,561,204.74 and 666,177.40 is: 919,328.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,303.34 : 1,561,204.74 = 666,177.40 : x
  2. Step 2: Convert to fraction form
    1,131,303.34/1,561,204.74 = 666,177.40/x
  3. Step 3: Cross multiply
    1,131,303.34x = 1,561,204.74 × 666,177.40
  4. Step 4: Simplify right side
    1,131,303.34x = 1,040,039,313,536.23
  5. Step 5: Solve for x
    x = 1,040,039,313,536.23/1,131,303.34
  6. Step 6: Final answer
    x = 919,328.42

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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.