Home / 817,192.26-1,225,788.39-256,270.50

Finding the Fourth Proportional to 817,192.26, 1,225,788.39 and 256,270.50

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Solution

The fourth proportional to 817,192.26, 1,225,788.39 and 256,270.50 is: 384,405.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,192.26 : 1,225,788.39 = 256,270.50 : x
  2. Step 2: Convert to fraction form
    817,192.26/1,225,788.39 = 256,270.50/x
  3. Step 3: Cross multiply
    817,192.26x = 1,225,788.39 × 256,270.50
  4. Step 4: Simplify right side
    817,192.26x = 314,133,403,599.50
  5. Step 5: Solve for x
    x = 314,133,403,599.50/817,192.26
  6. Step 6: Final answer
    x = 384,405.75

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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.