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Finding the Fourth Proportional to 528,026.20, 792,039.30 and 469,965.40

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Solution

The fourth proportional to 528,026.20, 792,039.30 and 469,965.40 is: 704,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,026.20 : 792,039.30 = 469,965.40 : x
  2. Step 2: Convert to fraction form
    528,026.20/792,039.30 = 469,965.40/x
  3. Step 3: Cross multiply
    528,026.20x = 792,039.30 × 469,965.40
  4. Step 4: Simplify right side
    528,026.20x = 372,231,066,440.22
  5. Step 5: Solve for x
    x = 372,231,066,440.22/528,026.20
  6. Step 6: Final answer
    x = 704,948.10

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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.