Home / 672,191.94-927,581.61-400,279.80

Finding the Fourth Proportional to 672,191.94, 927,581.61 and 400,279.80

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Solution

The fourth proportional to 672,191.94, 927,581.61 and 400,279.80 is: 552,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,191.94 : 927,581.61 = 400,279.80 : x
  2. Step 2: Convert to fraction form
    672,191.94/927,581.61 = 400,279.80/x
  3. Step 3: Cross multiply
    672,191.94x = 927,581.61 × 400,279.80
  4. Step 4: Simplify right side
    672,191.94x = 371,292,181,334.48
  5. Step 5: Solve for x
    x = 371,292,181,334.48/672,191.94
  6. Step 6: Final answer
    x = 552,360.36

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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.