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Finding the Fourth Proportional to 576,015.90, 864,023.85 and 155,334.30

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Solution

The fourth proportional to 576,015.90, 864,023.85 and 155,334.30 is: 233,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,015.90 : 864,023.85 = 155,334.30 : x
  2. Step 2: Convert to fraction form
    576,015.90/864,023.85 = 155,334.30/x
  3. Step 3: Cross multiply
    576,015.90x = 864,023.85 × 155,334.30
  4. Step 4: Simplify right side
    576,015.90x = 134,212,539,923.06
  5. Step 5: Solve for x
    x = 134,212,539,923.06/576,015.90
  6. Step 6: Final answer
    x = 233,001.45

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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.