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Finding the Fourth Proportional to 909,510.90, 1,361,641.95 and 804,534.90

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Solution

The fourth proportional to 909,510.90, 1,361,641.95 and 804,534.90 is: 1,204,480.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,510.90 : 1,361,641.95 = 804,534.90 : x
  2. Step 2: Convert to fraction form
    909,510.90/1,361,641.95 = 804,534.90/x
  3. Step 3: Cross multiply
    909,510.90x = 1,361,641.95 × 804,534.90
  4. Step 4: Simplify right side
    909,510.90x = 1,095,488,470,079.06
  5. Step 5: Solve for x
    x = 1,095,488,470,079.06/909,510.90
  6. Step 6: Final answer
    x = 1,204,480.86

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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.