Home / 864,164.20-1,296,246.30-509,870.20

Finding the Fourth Proportional to 864,164.20, 1,296,246.30 and 509,870.20

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Solution

The fourth proportional to 864,164.20, 1,296,246.30 and 509,870.20 is: 764,805.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,164.20 : 1,296,246.30 = 509,870.20 : x
  2. Step 2: Convert to fraction form
    864,164.20/1,296,246.30 = 509,870.20/x
  3. Step 3: Cross multiply
    864,164.20x = 1,296,246.30 × 509,870.20
  4. Step 4: Simplify right side
    864,164.20x = 660,917,360,230.26
  5. Step 5: Solve for x
    x = 660,917,360,230.26/864,164.20
  6. Step 6: Final answer
    x = 764,805.30

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Half scale
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Double scale
Find fourth proportional to 864,165.20, 1,296,247.80 and 509,871.20
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.