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Finding the Fourth Proportional to 528,176.99, 792,066.47 and 191,134.28

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Solution

The fourth proportional to 528,176.99, 792,066.47 and 191,134.28 is: 286,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,176.99 : 792,066.47 = 191,134.28 : x
  2. Step 2: Convert to fraction form
    528,176.99/792,066.47 = 191,134.28/x
  3. Step 3: Cross multiply
    528,176.99x = 792,066.47 × 191,134.28
  4. Step 4: Simplify right side
    528,176.99x = 151,391,049,539.59
  5. Step 5: Solve for x
    x = 151,391,049,539.59/528,176.99
  6. Step 6: Final answer
    x = 286,629.39

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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.