Home / 500,400.18-690,525.78-285,560.22

Finding the Fourth Proportional to 500,400.18, 690,525.78 and 285,560.22

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Solution

The fourth proportional to 500,400.18, 690,525.78 and 285,560.22 is: 394,058.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,400.18 : 690,525.78 = 285,560.22 : x
  2. Step 2: Convert to fraction form
    500,400.18/690,525.78 = 285,560.22/x
  3. Step 3: Cross multiply
    500,400.18x = 690,525.78 × 285,560.22
  4. Step 4: Simplify right side
    500,400.18x = 197,186,693,652.47
  5. Step 5: Solve for x
    x = 197,186,693,652.47/500,400.18
  6. Step 6: Final answer
    x = 394,058.00

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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.