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Finding the Fourth Proportional to 535,618.40, 801,872.40 and 520,066.40

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Solution

The fourth proportional to 535,618.40, 801,872.40 and 520,066.40 is: 778,589.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,618.40 : 801,872.40 = 520,066.40 : x
  2. Step 2: Convert to fraction form
    535,618.40/801,872.40 = 520,066.40/x
  3. Step 3: Cross multiply
    535,618.40x = 801,872.40 × 520,066.40
  4. Step 4: Simplify right side
    535,618.40x = 417,026,892,327.36
  5. Step 5: Solve for x
    x = 417,026,892,327.36/535,618.40
  6. Step 6: Final answer
    x = 778,589.56

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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.