Home / 856,108.72-1,181,415.54-474,127.30

Finding the Fourth Proportional to 856,108.72, 1,181,415.54 and 474,127.30

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Solution

The fourth proportional to 856,108.72, 1,181,415.54 and 474,127.30 is: 654,287.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,108.72 : 1,181,415.54 = 474,127.30 : x
  2. Step 2: Convert to fraction form
    856,108.72/1,181,415.54 = 474,127.30/x
  3. Step 3: Cross multiply
    856,108.72x = 1,181,415.54 × 474,127.30
  4. Step 4: Simplify right side
    856,108.72x = 560,141,360,158.24
  5. Step 5: Solve for x
    x = 560,141,360,158.24/856,108.72
  6. Step 6: Final answer
    x = 654,287.65

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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.