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Finding the Fourth Proportional to 614,130.94, 921,713.98 and 259,399.54

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Solution

The fourth proportional to 614,130.94, 921,713.98 and 259,399.54 is: 389,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,130.94 : 921,713.98 = 259,399.54 : x
  2. Step 2: Convert to fraction form
    614,130.94/921,713.98 = 259,399.54/x
  3. Step 3: Cross multiply
    614,130.94x = 921,713.98 × 259,399.54
  4. Step 4: Simplify right side
    614,130.94x = 239,092,182,423.57
  5. Step 5: Solve for x
    x = 239,092,182,423.57/614,130.94
  6. Step 6: Final answer
    x = 389,317.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.