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Finding the Fourth Proportional to 907,674.90, 1,361,512.35 and 866,340.60

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Solution

The fourth proportional to 907,674.90, 1,361,512.35 and 866,340.60 is: 1,299,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,674.90 : 1,361,512.35 = 866,340.60 : x
  2. Step 2: Convert to fraction form
    907,674.90/1,361,512.35 = 866,340.60/x
  3. Step 3: Cross multiply
    907,674.90x = 1,361,512.35 × 866,340.60
  4. Step 4: Simplify right side
    907,674.90x = 1,179,533,426,206.41
  5. Step 5: Solve for x
    x = 1,179,533,426,206.41/907,674.90
  6. Step 6: Final answer
    x = 1,299,510.90

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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.