Home / 672,105.06-927,461.75-400,192.92

Finding the Fourth Proportional to 672,105.06, 927,461.75 and 400,192.92

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Solution

The fourth proportional to 672,105.06, 927,461.75 and 400,192.92 is: 552,240.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,105.06 : 927,461.75 = 400,192.92 : x
  2. Step 2: Convert to fraction form
    672,105.06/927,461.75 = 400,192.92/x
  3. Step 3: Cross multiply
    672,105.06x = 927,461.75 × 400,192.92
  4. Step 4: Simplify right side
    672,105.06x = 371,163,623,919.85
  5. Step 5: Solve for x
    x = 371,163,623,919.85/672,105.06
  6. Step 6: Final answer
    x = 552,240.48

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Double scale
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Similar ratio
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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.