Home / 829,282.20-1,243,923.30-409,378.20

Finding the Fourth Proportional to 829,282.20, 1,243,923.30 and 409,378.20

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Solution

The fourth proportional to 829,282.20, 1,243,923.30 and 409,378.20 is: 614,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,282.20 : 1,243,923.30 = 409,378.20 : x
  2. Step 2: Convert to fraction form
    829,282.20/1,243,923.30 = 409,378.20/x
  3. Step 3: Cross multiply
    829,282.20x = 1,243,923.30 × 409,378.20
  4. Step 4: Simplify right side
    829,282.20x = 509,235,081,492.06
  5. Step 5: Solve for x
    x = 509,235,081,492.06/829,282.20
  6. Step 6: Final answer
    x = 614,067.30

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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.