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Finding the Fourth Proportional to 528,070.40, 792,105.60 and 243,760.40

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Solution

The fourth proportional to 528,070.40, 792,105.60 and 243,760.40 is: 365,640.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,070.40 : 792,105.60 = 243,760.40 : x
  2. Step 2: Convert to fraction form
    528,070.40/792,105.60 = 243,760.40/x
  3. Step 3: Cross multiply
    528,070.40x = 792,105.60 × 243,760.40
  4. Step 4: Simplify right side
    528,070.40x = 193,083,977,898.24
  5. Step 5: Solve for x
    x = 193,083,977,898.24/528,070.40
  6. Step 6: Final answer
    x = 365,640.60

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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.