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Finding the Fourth Proportional to 528,090.60, 792,135.90 and 191,292.60

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Solution

The fourth proportional to 528,090.60, 792,135.90 and 191,292.60 is: 286,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,090.60 : 792,135.90 = 191,292.60 : x
  2. Step 2: Convert to fraction form
    528,090.60/792,135.90 = 191,292.60/x
  3. Step 3: Cross multiply
    528,090.60x = 792,135.90 × 191,292.60
  4. Step 4: Simplify right side
    528,090.60x = 151,529,735,864.34
  5. Step 5: Solve for x
    x = 151,529,735,864.34/528,090.60
  6. Step 6: Final answer
    x = 286,938.90

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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.