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Finding the Fourth Proportional to 872,951.10, 1,310,410.80 and 674,152.80

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Solution

The fourth proportional to 872,951.10, 1,310,410.80 and 674,152.80 is: 1,011,989.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,951.10 : 1,310,410.80 = 674,152.80 : x
  2. Step 2: Convert to fraction form
    872,951.10/1,310,410.80 = 674,152.80/x
  3. Step 3: Cross multiply
    872,951.10x = 1,310,410.80 × 674,152.80
  4. Step 4: Simplify right side
    872,951.10x = 883,417,109,970.24
  5. Step 5: Solve for x
    x = 883,417,109,970.24/872,951.10
  6. Step 6: Final answer
    x = 1,011,989.23

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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.