Home / 1,210,901.20-1,816,351.80-324,437.20

Finding the Fourth Proportional to 1,210,901.20, 1,816,351.80 and 324,437.20

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Solution

The fourth proportional to 1,210,901.20, 1,816,351.80 and 324,437.20 is: 486,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,901.20 : 1,816,351.80 = 324,437.20 : x
  2. Step 2: Convert to fraction form
    1,210,901.20/1,816,351.80 = 324,437.20/x
  3. Step 3: Cross multiply
    1,210,901.20x = 1,816,351.80 × 324,437.20
  4. Step 4: Simplify right side
    1,210,901.20x = 589,292,092,206.96
  5. Step 5: Solve for x
    x = 589,292,092,206.96/1,210,901.20
  6. Step 6: Final answer
    x = 486,655.80

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Half scale
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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.