Home / 831,730.30-1,247,595.45-453,816.70

Finding the Fourth Proportional to 831,730.30, 1,247,595.45 and 453,816.70

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Solution

The fourth proportional to 831,730.30, 1,247,595.45 and 453,816.70 is: 680,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,730.30 : 1,247,595.45 = 453,816.70 : x
  2. Step 2: Convert to fraction form
    831,730.30/1,247,595.45 = 453,816.70/x
  3. Step 3: Cross multiply
    831,730.30x = 1,247,595.45 × 453,816.70
  4. Step 4: Simplify right side
    831,730.30x = 566,179,650,054.02
  5. Step 5: Solve for x
    x = 566,179,650,054.02/831,730.30
  6. Step 6: Final answer
    x = 680,725.05

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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.