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Finding the Fourth Proportional to 693,335.16, 956,808.86 and 406,860.03

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Solution

The fourth proportional to 693,335.16, 956,808.86 and 406,860.03 is: 561,470.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,335.16 : 956,808.86 = 406,860.03 : x
  2. Step 2: Convert to fraction form
    693,335.16/956,808.86 = 406,860.03/x
  3. Step 3: Cross multiply
    693,335.16x = 956,808.86 × 406,860.03
  4. Step 4: Simplify right side
    693,335.16x = 389,287,279,449.57
  5. Step 5: Solve for x
    x = 389,287,279,449.57/693,335.16
  6. Step 6: Final answer
    x = 561,470.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.