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Finding the Fourth Proportional to 528,761.86, 792,180.51 and 472,074.82

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Solution

The fourth proportional to 528,761.86, 792,180.51 and 472,074.82 is: 707,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,761.86 : 792,180.51 = 472,074.82 : x
  2. Step 2: Convert to fraction form
    528,761.86/792,180.51 = 472,074.82/x
  3. Step 3: Cross multiply
    528,761.86x = 792,180.51 × 472,074.82
  4. Step 4: Simplify right side
    528,761.86x = 373,968,471,665.76
  5. Step 5: Solve for x
    x = 373,968,471,665.76/528,761.86
  6. Step 6: Final answer
    x = 707,253.11

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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.