Home / 906,856.42-1,251,436.04-498,958.53

Finding the Fourth Proportional to 906,856.42, 1,251,436.04 and 498,958.53

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Solution

The fourth proportional to 906,856.42, 1,251,436.04 and 498,958.53 is: 688,548.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,856.42 : 1,251,436.04 = 498,958.53 : x
  2. Step 2: Convert to fraction form
    906,856.42/1,251,436.04 = 498,958.53/x
  3. Step 3: Cross multiply
    906,856.42x = 1,251,436.04 × 498,958.53
  4. Step 4: Simplify right side
    906,856.42x = 624,414,686,907.42
  5. Step 5: Solve for x
    x = 624,414,686,907.42/906,856.42
  6. Step 6: Final answer
    x = 688,548.57

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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.