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Finding the Fourth Proportional to 528,047.90, 792,071.85 and 291,851.90

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Solution

The fourth proportional to 528,047.90, 792,071.85 and 291,851.90 is: 437,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,047.90 : 792,071.85 = 291,851.90 : x
  2. Step 2: Convert to fraction form
    528,047.90/792,071.85 = 291,851.90/x
  3. Step 3: Cross multiply
    528,047.90x = 792,071.85 × 291,851.90
  4. Step 4: Simplify right side
    528,047.90x = 231,167,674,359.02
  5. Step 5: Solve for x
    x = 231,167,674,359.02/528,047.90
  6. Step 6: Final answer
    x = 437,777.85

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Similar ratio
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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.