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Finding the Fourth Proportional to 528,062.40, 792,093.60 and 291,866.40

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Solution

The fourth proportional to 528,062.40, 792,093.60 and 291,866.40 is: 437,799.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,062.40 : 792,093.60 = 291,866.40 : x
  2. Step 2: Convert to fraction form
    528,062.40/792,093.60 = 291,866.40/x
  3. Step 3: Cross multiply
    528,062.40x = 792,093.60 × 291,866.40
  4. Step 4: Simplify right side
    528,062.40x = 231,185,507,495.04
  5. Step 5: Solve for x
    x = 231,185,507,495.04/528,062.40
  6. Step 6: Final answer
    x = 437,799.60

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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.