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Finding the Fourth Proportional to 868,681.80, 1,303,022.70 and 868,681.80

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Solution

The fourth proportional to 868,681.80, 1,303,022.70 and 868,681.80 is: 1,303,022.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,681.80 : 1,303,022.70 = 868,681.80 : x
  2. Step 2: Convert to fraction form
    868,681.80/1,303,022.70 = 868,681.80/x
  3. Step 3: Cross multiply
    868,681.80x = 1,303,022.70 × 868,681.80
  4. Step 4: Simplify right side
    868,681.80x = 1,131,912,104,476.86
  5. Step 5: Solve for x
    x = 1,131,912,104,476.86/868,681.80
  6. Step 6: Final answer
    x = 1,303,022.70

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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.