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Finding the Fourth Proportional to 540,099.40, 810,149.10 and 185,116.90

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Solution

The fourth proportional to 540,099.40, 810,149.10 and 185,116.90 is: 277,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,099.40 : 810,149.10 = 185,116.90 : x
  2. Step 2: Convert to fraction form
    540,099.40/810,149.10 = 185,116.90/x
  3. Step 3: Cross multiply
    540,099.40x = 810,149.10 × 185,116.90
  4. Step 4: Simplify right side
    540,099.40x = 149,972,289,929.79
  5. Step 5: Solve for x
    x = 149,972,289,929.79/540,099.40
  6. Step 6: Final answer
    x = 277,675.35

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Half scale
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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.