Home / 621,444.05-857,986.80-425,538.36

Finding the Fourth Proportional to 621,444.05, 857,986.80 and 425,538.36

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Solution

The fourth proportional to 621,444.05, 857,986.80 and 425,538.36 is: 587,512.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,444.05 : 857,986.80 = 425,538.36 : x
  2. Step 2: Convert to fraction form
    621,444.05/857,986.80 = 425,538.36/x
  3. Step 3: Cross multiply
    621,444.05x = 857,986.80 × 425,538.36
  4. Step 4: Simplify right side
    621,444.05x = 365,106,295,773.65
  5. Step 5: Solve for x
    x = 365,106,295,773.65/621,444.05
  6. Step 6: Final answer
    x = 587,512.74

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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.