Home / 635,632.56-876,922.20-409,409.28

Finding the Fourth Proportional to 635,632.56, 876,922.20 and 409,409.28

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Solution

The fourth proportional to 635,632.56, 876,922.20 and 409,409.28 is: 564,823.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,632.56 : 876,922.20 = 409,409.28 : x
  2. Step 2: Convert to fraction form
    635,632.56/876,922.20 = 409,409.28/x
  3. Step 3: Cross multiply
    635,632.56x = 876,922.20 × 409,409.28
  4. Step 4: Simplify right side
    635,632.56x = 359,020,086,518.02
  5. Step 5: Solve for x
    x = 359,020,086,518.02/635,632.56
  6. Step 6: Final answer
    x = 564,823.31

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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.