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Finding the Fourth Proportional to 693,268.56, 956,711.10 and 402,937.02

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Solution

The fourth proportional to 693,268.56, 956,711.10 and 402,937.02 is: 556,053.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,268.56 : 956,711.10 = 402,937.02 : x
  2. Step 2: Convert to fraction form
    693,268.56/956,711.10 = 402,937.02/x
  3. Step 3: Cross multiply
    693,268.56x = 956,711.10 × 402,937.02
  4. Step 4: Simplify right side
    693,268.56x = 385,494,319,634.92
  5. Step 5: Solve for x
    x = 385,494,319,634.92/693,268.56
  6. Step 6: Final answer
    x = 556,053.37

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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.