Home / 1,091,235.76-1,505,980.96-661,534

Finding the Fourth Proportional to 1,091,235.76, 1,505,980.96 and 661,534

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Solution

The fourth proportional to 1,091,235.76, 1,505,980.96 and 661,534 is: 912,962.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,235.76 : 1,505,980.96 = 661,534 : x
  2. Step 2: Convert to fraction form
    1,091,235.76/1,505,980.96 = 661,534/x
  3. Step 3: Cross multiply
    1,091,235.76x = 1,505,980.96 × 661,534
  4. Step 4: Simplify right side
    1,091,235.76x = 996,257,608,392.64
  5. Step 5: Solve for x
    x = 996,257,608,392.64/1,091,235.76
  6. Step 6: Final answer
    x = 912,962.76

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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.