Home / 613,159.47-845,436.24-419,660.55

Finding the Fourth Proportional to 613,159.47, 845,436.24 and 419,660.55

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Solution

The fourth proportional to 613,159.47, 845,436.24 and 419,660.55 is: 578,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,159.47 : 845,436.24 = 419,660.55 : x
  2. Step 2: Convert to fraction form
    613,159.47/845,436.24 = 419,660.55/x
  3. Step 3: Cross multiply
    613,159.47x = 845,436.24 × 419,660.55
  4. Step 4: Simplify right side
    613,159.47x = 354,796,237,468.33
  5. Step 5: Solve for x
    x = 354,796,237,468.33/613,159.47
  6. Step 6: Final answer
    x = 578,636.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.