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Finding the Fourth Proportional to 528,092.90, 792,139.35 and 243,782.90

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Solution

The fourth proportional to 528,092.90, 792,139.35 and 243,782.90 is: 365,674.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,092.90 : 792,139.35 = 243,782.90 : x
  2. Step 2: Convert to fraction form
    528,092.90/792,139.35 = 243,782.90/x
  3. Step 3: Cross multiply
    528,092.90x = 792,139.35 × 243,782.90
  4. Step 4: Simplify right side
    528,092.90x = 193,110,027,947.12
  5. Step 5: Solve for x
    x = 193,110,027,947.12/528,092.90
  6. Step 6: Final answer
    x = 365,674.35

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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.