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Finding the Fourth Proportional to 614,577.90, 921,996.45 and 259,409.10

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Solution

The fourth proportional to 614,577.90, 921,996.45 and 259,409.10 is: 389,168.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,577.90 : 921,996.45 = 259,409.10 : x
  2. Step 2: Convert to fraction form
    614,577.90/921,996.45 = 259,409.10/x
  3. Step 3: Cross multiply
    614,577.90x = 921,996.45 × 259,409.10
  4. Step 4: Simplify right side
    614,577.90x = 239,174,269,297.70
  5. Step 5: Solve for x
    x = 239,174,269,297.70/614,577.90
  6. Step 6: Final answer
    x = 389,168.35

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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.