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Finding the Fourth Proportional to 614,125.93, 921,706.49 and 259,394.53

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Solution

The fourth proportional to 614,125.93, 921,706.49 and 259,394.53 is: 389,310.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,125.93 : 921,706.49 = 259,394.53 : x
  2. Step 2: Convert to fraction form
    614,125.93/921,706.49 = 259,394.53/x
  3. Step 3: Cross multiply
    614,125.93x = 921,706.49 × 259,394.53
  4. Step 4: Simplify right side
    614,125.93x = 239,085,621,771.50
  5. Step 5: Solve for x
    x = 239,085,621,771.50/614,125.93
  6. Step 6: Final answer
    x = 389,310.42

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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.