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Finding the Fourth Proportional to 873,951.80, 1,206,232.12 and 551,444.60

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Solution

The fourth proportional to 873,951.80, 1,206,232.12 and 551,444.60 is: 761,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,951.80 : 1,206,232.12 = 551,444.60 : x
  2. Step 2: Convert to fraction form
    873,951.80/1,206,232.12 = 551,444.60/x
  3. Step 3: Cross multiply
    873,951.80x = 1,206,232.12 × 551,444.60
  4. Step 4: Simplify right side
    873,951.80x = 665,170,188,920.55
  5. Step 5: Solve for x
    x = 665,170,188,920.55/873,951.80
  6. Step 6: Final answer
    x = 761,106.26

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Double scale
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1.5x scale

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.