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Finding the Fourth Proportional to 917,332.80, 1,374,832.80 and 817,022.40

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Solution

The fourth proportional to 917,332.80, 1,374,832.80 and 817,022.40 is: 1,224,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,332.80 : 1,374,832.80 = 817,022.40 : x
  2. Step 2: Convert to fraction form
    917,332.80/1,374,832.80 = 817,022.40/x
  3. Step 3: Cross multiply
    917,332.80x = 1,374,832.80 × 817,022.40
  4. Step 4: Simplify right side
    917,332.80x = 1,123,269,193,854.72
  5. Step 5: Solve for x
    x = 1,123,269,193,854.72/917,332.80
  6. Step 6: Final answer
    x = 1,224,494.75

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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.