Home / 923,808.32-1,386,987.36-638,799.68

Finding the Fourth Proportional to 923,808.32, 1,386,987.36 and 638,799.68

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Solution

The fourth proportional to 923,808.32, 1,386,987.36 and 638,799.68 is: 959,081.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,808.32 : 1,386,987.36 = 638,799.68 : x
  2. Step 2: Convert to fraction form
    923,808.32/1,386,987.36 = 638,799.68/x
  3. Step 3: Cross multiply
    923,808.32x = 1,386,987.36 × 638,799.68
  4. Step 4: Simplify right side
    923,808.32x = 886,007,081,732.05
  5. Step 5: Solve for x
    x = 886,007,081,732.05/923,808.32
  6. Step 6: Final answer
    x = 959,081.08

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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.