Home / 831,716.30-1,247,574.45-453,802.70

Finding the Fourth Proportional to 831,716.30, 1,247,574.45 and 453,802.70

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Solution

The fourth proportional to 831,716.30, 1,247,574.45 and 453,802.70 is: 680,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,716.30 : 1,247,574.45 = 453,802.70 : x
  2. Step 2: Convert to fraction form
    831,716.30/1,247,574.45 = 453,802.70/x
  3. Step 3: Cross multiply
    831,716.30x = 1,247,574.45 × 453,802.70
  4. Step 4: Simplify right side
    831,716.30x = 566,152,653,861.02
  5. Step 5: Solve for x
    x = 566,152,653,861.02/831,716.30
  6. Step 6: Final answer
    x = 680,704.05

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Double scale
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Similar ratio
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1.5x scale

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.