Home / 614,579.40-921,998.70-259,410.60

Finding the Fourth Proportional to 614,579.40, 921,998.70 and 259,410.60

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Solution

The fourth proportional to 614,579.40, 921,998.70 and 259,410.60 is: 389,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,579.40 : 921,998.70 = 259,410.60 : x
  2. Step 2: Convert to fraction form
    614,579.40/921,998.70 = 259,410.60/x
  3. Step 3: Cross multiply
    614,579.40x = 921,998.70 × 259,410.60
  4. Step 4: Simplify right side
    614,579.40x = 239,176,235,966.22
  5. Step 5: Solve for x
    x = 239,176,235,966.22/614,579.40
  6. Step 6: Final answer
    x = 389,170.60

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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.