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Finding the Fourth Proportional to 909,538.90, 1,361,683.95 and 804,562.90

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Solution

The fourth proportional to 909,538.90, 1,361,683.95 and 804,562.90 is: 1,204,522.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,538.90 : 1,361,683.95 = 804,562.90 : x
  2. Step 2: Convert to fraction form
    909,538.90/1,361,683.95 = 804,562.90/x
  3. Step 3: Cross multiply
    909,538.90x = 1,361,683.95 × 804,562.90
  4. Step 4: Simplify right side
    909,538.90x = 1,095,560,387,695.46
  5. Step 5: Solve for x
    x = 1,095,560,387,695.46/909,538.90
  6. Step 6: Final answer
    x = 1,204,522.85

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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.