Home / 1,225,816.20-1,838,724.30-384,366.60

Finding the Fourth Proportional to 1,225,816.20, 1,838,724.30 and 384,366.60

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Solution

The fourth proportional to 1,225,816.20, 1,838,724.30 and 384,366.60 is: 576,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,816.20 : 1,838,724.30 = 384,366.60 : x
  2. Step 2: Convert to fraction form
    1,225,816.20/1,838,724.30 = 384,366.60/x
  3. Step 3: Cross multiply
    1,225,816.20x = 1,838,724.30 × 384,366.60
  4. Step 4: Simplify right side
    1,225,816.20x = 706,744,207,528.38
  5. Step 5: Solve for x
    x = 706,744,207,528.38/1,225,816.20
  6. Step 6: Final answer
    x = 576,549.90

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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.