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Finding the Fourth Proportional to 360,985.50, 541,478.25 and 98,329.50

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Solution

The fourth proportional to 360,985.50, 541,478.25 and 98,329.50 is: 147,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,985.50 : 541,478.25 = 98,329.50 : x
  2. Step 2: Convert to fraction form
    360,985.50/541,478.25 = 98,329.50/x
  3. Step 3: Cross multiply
    360,985.50x = 541,478.25 × 98,329.50
  4. Step 4: Simplify right side
    360,985.50x = 53,243,285,583.38
  5. Step 5: Solve for x
    x = 53,243,285,583.38/360,985.50
  6. Step 6: Final answer
    x = 147,494.25

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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.