Home / 566,867.20-782,276.75-312,218.38

Finding the Fourth Proportional to 566,867.20, 782,276.75 and 312,218.38

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Solution

The fourth proportional to 566,867.20, 782,276.75 and 312,218.38 is: 430,861.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,867.20 : 782,276.75 = 312,218.38 : x
  2. Step 2: Convert to fraction form
    566,867.20/782,276.75 = 312,218.38/x
  3. Step 3: Cross multiply
    566,867.20x = 782,276.75 × 312,218.38
  4. Step 4: Simplify right side
    566,867.20x = 244,241,178,035.57
  5. Step 5: Solve for x
    x = 244,241,178,035.57/566,867.20
  6. Step 6: Final answer
    x = 430,861.37

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Half scale
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Double scale
Find fourth proportional to 566,868.20, 782,278.13 and 312,219.38
Similar ratio
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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.