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Finding the Fourth Proportional to 692,808.32, 955,743.74 and 434,555.96

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Solution

The fourth proportional to 692,808.32, 955,743.74 and 434,555.96 is: 599,479.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,808.32 : 955,743.74 = 434,555.96 : x
  2. Step 2: Convert to fraction form
    692,808.32/955,743.74 = 434,555.96/x
  3. Step 3: Cross multiply
    692,808.32x = 955,743.74 × 434,555.96
  4. Step 4: Simplify right side
    692,808.32x = 415,324,133,127.78
  5. Step 5: Solve for x
    x = 415,324,133,127.78/692,808.32
  6. Step 6: Final answer
    x = 599,479.13

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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.