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Finding the Fourth Proportional to 906,219.10, 1,359,328.65 and 607,620.70

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Solution

The fourth proportional to 906,219.10, 1,359,328.65 and 607,620.70 is: 911,431.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,219.10 : 1,359,328.65 = 607,620.70 : x
  2. Step 2: Convert to fraction form
    906,219.10/1,359,328.65 = 607,620.70/x
  3. Step 3: Cross multiply
    906,219.10x = 1,359,328.65 × 607,620.70
  4. Step 4: Simplify right side
    906,219.10x = 825,956,225,843.06
  5. Step 5: Solve for x
    x = 825,956,225,843.06/906,219.10
  6. Step 6: Final answer
    x = 911,431.05

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Similar ratio
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1.5x scale

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.