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Finding the Fourth Proportional to 528,093.90, 792,140.85 and 243,783.90

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Solution

The fourth proportional to 528,093.90, 792,140.85 and 243,783.90 is: 365,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,093.90 : 792,140.85 = 243,783.90 : x
  2. Step 2: Convert to fraction form
    528,093.90/792,140.85 = 243,783.90/x
  3. Step 3: Cross multiply
    528,093.90x = 792,140.85 × 243,783.90
  4. Step 4: Simplify right side
    528,093.90x = 193,111,185,762.32
  5. Step 5: Solve for x
    x = 193,111,185,762.32/528,093.90
  6. Step 6: Final answer
    x = 365,675.85

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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.