Home / 684,808.53-945,338.39-409,263.59

Finding the Fourth Proportional to 684,808.53, 945,338.39 and 409,263.59

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Solution

The fourth proportional to 684,808.53, 945,338.39 and 409,263.59 is: 564,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,808.53 : 945,338.39 = 409,263.59 : x
  2. Step 2: Convert to fraction form
    684,808.53/945,338.39 = 409,263.59/x
  3. Step 3: Cross multiply
    684,808.53x = 945,338.39 × 409,263.59
  4. Step 4: Simplify right side
    684,808.53x = 386,892,582,092.57
  5. Step 5: Solve for x
    x = 386,892,582,092.57/684,808.53
  6. Step 6: Final answer
    x = 564,964.61

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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.