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Finding the Fourth Proportional to 528,066.30, 792,099.45 and 440,586.30

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Solution

The fourth proportional to 528,066.30, 792,099.45 and 440,586.30 is: 660,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,066.30 : 792,099.45 = 440,586.30 : x
  2. Step 2: Convert to fraction form
    528,066.30/792,099.45 = 440,586.30/x
  3. Step 3: Cross multiply
    528,066.30x = 792,099.45 × 440,586.30
  4. Step 4: Simplify right side
    528,066.30x = 348,988,165,907.54
  5. Step 5: Solve for x
    x = 348,988,165,907.54/528,066.30
  6. Step 6: Final answer
    x = 660,879.45

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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.