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Finding the Fourth Proportional to 663,509.25, 995,263.88 and 220,277.25

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Solution

The fourth proportional to 663,509.25, 995,263.88 and 220,277.25 is: 330,415.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,509.25 : 995,263.88 = 220,277.25 : x
  2. Step 2: Convert to fraction form
    663,509.25/995,263.88 = 220,277.25/x
  3. Step 3: Cross multiply
    663,509.25x = 995,263.88 × 220,277.25
  4. Step 4: Simplify right side
    663,509.25x = 219,233,990,510.73
  5. Step 5: Solve for x
    x = 219,233,990,510.73/663,509.25
  6. Step 6: Final answer
    x = 330,415.88

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Half scale
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Double scale
Find fourth proportional to 663,510.25, 995,265.38 and 220,278.25
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.