Home / 376,581.79-519,691.71-215,451.83

Finding the Fourth Proportional to 376,581.79, 519,691.71 and 215,451.83

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Solution

The fourth proportional to 376,581.79, 519,691.71 and 215,451.83 is: 297,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,581.79 : 519,691.71 = 215,451.83 : x
  2. Step 2: Convert to fraction form
    376,581.79/519,691.71 = 215,451.83/x
  3. Step 3: Cross multiply
    376,581.79x = 519,691.71 × 215,451.83
  4. Step 4: Simplify right side
    376,581.79x = 111,968,528,878.07
  5. Step 5: Solve for x
    x = 111,968,528,878.07/376,581.79
  6. Step 6: Final answer
    x = 297,328.58

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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.