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Finding the Fourth Proportional to 528,234.40, 792,351.60 and 154,257.40

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Solution

The fourth proportional to 528,234.40, 792,351.60 and 154,257.40 is: 231,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,234.40 : 792,351.60 = 154,257.40 : x
  2. Step 2: Convert to fraction form
    528,234.40/792,351.60 = 154,257.40/x
  3. Step 3: Cross multiply
    528,234.40x = 792,351.60 × 154,257.40
  4. Step 4: Simplify right side
    528,234.40x = 122,226,097,701.84
  5. Step 5: Solve for x
    x = 122,226,097,701.84/528,234.40
  6. Step 6: Final answer
    x = 231,386.10

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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.