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Finding the Fourth Proportional to 817,543, 1,127,040.10 and 575,073.04

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Solution

The fourth proportional to 817,543, 1,127,040.10 and 575,073.04 is: 792,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,543 : 1,127,040.10 = 575,073.04 : x
  2. Step 2: Convert to fraction form
    817,543/1,127,040.10 = 575,073.04/x
  3. Step 3: Cross multiply
    817,543x = 1,127,040.10 × 575,073.04
  4. Step 4: Simplify right side
    817,543x = 648,130,376,508.90
  5. Step 5: Solve for x
    x = 648,130,376,508.90/817,543
  6. Step 6: Final answer
    x = 792,778.33

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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.