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Finding the Fourth Proportional to 630,158.30, 945,232.59 and 156,840.47

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Solution

The fourth proportional to 630,158.30, 945,232.59 and 156,840.47 is: 235,259.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,158.30 : 945,232.59 = 156,840.47 : x
  2. Step 2: Convert to fraction form
    630,158.30/945,232.59 = 156,840.47/x
  3. Step 3: Cross multiply
    630,158.30x = 945,232.59 × 156,840.47
  4. Step 4: Simplify right side
    630,158.30x = 148,250,726,626.15
  5. Step 5: Solve for x
    x = 148,250,726,626.15/630,158.30
  6. Step 6: Final answer
    x = 235,259.50

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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.