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Finding the Fourth Proportional to 541,263.30, 811,894.95 and 225,615.30

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Solution

The fourth proportional to 541,263.30, 811,894.95 and 225,615.30 is: 338,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,263.30 : 811,894.95 = 225,615.30 : x
  2. Step 2: Convert to fraction form
    541,263.30/811,894.95 = 225,615.30/x
  3. Step 3: Cross multiply
    541,263.30x = 811,894.95 × 225,615.30
  4. Step 4: Simplify right side
    541,263.30x = 183,175,922,712.74
  5. Step 5: Solve for x
    x = 183,175,922,712.74/541,263.30
  6. Step 6: Final answer
    x = 338,422.95

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Half scale
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Double scale
Find fourth proportional to 541,264.30, 811,896.45 and 225,616.30
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.