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Finding the Fourth Proportional to 540,086.90, 810,130.35 and 185,104.40

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Solution

The fourth proportional to 540,086.90, 810,130.35 and 185,104.40 is: 277,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,086.90 : 810,130.35 = 185,104.40 : x
  2. Step 2: Convert to fraction form
    540,086.90/810,130.35 = 185,104.40/x
  3. Step 3: Cross multiply
    540,086.90x = 810,130.35 × 185,104.40
  4. Step 4: Simplify right side
    540,086.90x = 149,958,692,358.54
  5. Step 5: Solve for x
    x = 149,958,692,358.54/540,086.90
  6. Step 6: Final answer
    x = 277,656.60

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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.