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Finding the Fourth Proportional to 528,065.40, 792,098.10 and 243,755.40

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Solution

The fourth proportional to 528,065.40, 792,098.10 and 243,755.40 is: 365,633.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,065.40 : 792,098.10 = 243,755.40 : x
  2. Step 2: Convert to fraction form
    528,065.40/792,098.10 = 243,755.40/x
  3. Step 3: Cross multiply
    528,065.40x = 792,098.10 × 243,755.40
  4. Step 4: Simplify right side
    528,065.40x = 193,078,189,204.74
  5. Step 5: Solve for x
    x = 193,078,189,204.74/528,065.40
  6. Step 6: Final answer
    x = 365,633.10

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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.