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Finding the Fourth Proportional to 832,219.76, 1,149,639 and 662,236.40

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Solution

The fourth proportional to 832,219.76, 1,149,639 and 662,236.40 is: 914,821.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,219.76 : 1,149,639 = 662,236.40 : x
  2. Step 2: Convert to fraction form
    832,219.76/1,149,639 = 662,236.40/x
  3. Step 3: Cross multiply
    832,219.76x = 1,149,639 × 662,236.40
  4. Step 4: Simplify right side
    832,219.76x = 761,332,792,659.60
  5. Step 5: Solve for x
    x = 761,332,792,659.60/832,219.76
  6. Step 6: Final answer
    x = 914,821.82

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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.