Home / 688,249.71-949,936.40-382,431.17

Finding the Fourth Proportional to 688,249.71, 949,936.40 and 382,431.17

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Solution

The fourth proportional to 688,249.71, 949,936.40 and 382,431.17 is: 527,839.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,249.71 : 949,936.40 = 382,431.17 : x
  2. Step 2: Convert to fraction form
    688,249.71/949,936.40 = 382,431.17/x
  3. Step 3: Cross multiply
    688,249.71x = 949,936.40 × 382,431.17
  4. Step 4: Simplify right side
    688,249.71x = 363,285,282,215.75
  5. Step 5: Solve for x
    x = 363,285,282,215.75/688,249.71
  6. Step 6: Final answer
    x = 527,839.35

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Double scale
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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.