Home / 613,114.20-918,734.40-257,933.52

Finding the Fourth Proportional to 613,114.20, 918,734.40 and 257,933.52

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Solution

The fourth proportional to 613,114.20, 918,734.40 and 257,933.52 is: 386,506.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,114.20 : 918,734.40 = 257,933.52 : x
  2. Step 2: Convert to fraction form
    613,114.20/918,734.40 = 257,933.52/x
  3. Step 3: Cross multiply
    613,114.20x = 918,734.40 × 257,933.52
  4. Step 4: Simplify right side
    613,114.20x = 236,972,397,737.09
  5. Step 5: Solve for x
    x = 236,972,397,737.09/613,114.20
  6. Step 6: Final answer
    x = 386,506.13

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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.