Home / 691,832.16-954,727.20-390,026.16

Finding the Fourth Proportional to 691,832.16, 954,727.20 and 390,026.16

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Solution

The fourth proportional to 691,832.16, 954,727.20 and 390,026.16 is: 538,235.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,832.16 : 954,727.20 = 390,026.16 : x
  2. Step 2: Convert to fraction form
    691,832.16/954,727.20 = 390,026.16/x
  3. Step 3: Cross multiply
    691,832.16x = 954,727.20 × 390,026.16
  4. Step 4: Simplify right side
    691,832.16x = 372,368,583,663.55
  5. Step 5: Solve for x
    x = 372,368,583,663.55/691,832.16
  6. Step 6: Final answer
    x = 538,235.44

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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.