Home / 865,493.78-1,194,318.83-478,304.57

Finding the Fourth Proportional to 865,493.78, 1,194,318.83 and 478,304.57

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Solution

The fourth proportional to 865,493.78, 1,194,318.83 and 478,304.57 is: 660,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,493.78 : 1,194,318.83 = 478,304.57 : x
  2. Step 2: Convert to fraction form
    865,493.78/1,194,318.83 = 478,304.57/x
  3. Step 3: Cross multiply
    865,493.78x = 1,194,318.83 × 478,304.57
  4. Step 4: Simplify right side
    865,493.78x = 571,248,158,607.61
  5. Step 5: Solve for x
    x = 571,248,158,607.61/865,493.78
  6. Step 6: Final answer
    x = 660,025.73

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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.