Home / 864,110.70-1,296,166.05-509,816.70

Finding the Fourth Proportional to 864,110.70, 1,296,166.05 and 509,816.70

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Solution

The fourth proportional to 864,110.70, 1,296,166.05 and 509,816.70 is: 764,725.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,110.70 : 1,296,166.05 = 509,816.70 : x
  2. Step 2: Convert to fraction form
    864,110.70/1,296,166.05 = 509,816.70/x
  3. Step 3: Cross multiply
    864,110.70x = 1,296,166.05 × 509,816.70
  4. Step 4: Simplify right side
    864,110.70x = 660,807,098,263.04
  5. Step 5: Solve for x
    x = 660,807,098,263.04/864,110.70
  6. Step 6: Final answer
    x = 764,725.05

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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.