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Finding the Fourth Proportional to 652,868.40, 979,302.60 and 605,629.20

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Solution

The fourth proportional to 652,868.40, 979,302.60 and 605,629.20 is: 908,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,868.40 : 979,302.60 = 605,629.20 : x
  2. Step 2: Convert to fraction form
    652,868.40/979,302.60 = 605,629.20/x
  3. Step 3: Cross multiply
    652,868.40x = 979,302.60 × 605,629.20
  4. Step 4: Simplify right side
    652,868.40x = 593,094,250,195.92
  5. Step 5: Solve for x
    x = 593,094,250,195.92/652,868.40
  6. Step 6: Final answer
    x = 908,443.80

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Double scale
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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.