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Finding the Fourth Proportional to 522,365.41, 783,548.12 and 148,339.81

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Solution

The fourth proportional to 522,365.41, 783,548.12 and 148,339.81 is: 222,509.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,365.41 : 783,548.12 = 148,339.81 : x
  2. Step 2: Convert to fraction form
    522,365.41/783,548.12 = 148,339.81/x
  3. Step 3: Cross multiply
    522,365.41x = 783,548.12 × 148,339.81
  4. Step 4: Simplify right side
    522,365.41x = 116,231,379,246.66
  5. Step 5: Solve for x
    x = 116,231,379,246.66/522,365.41
  6. Step 6: Final answer
    x = 222,509.72

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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.