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Finding the Fourth Proportional to 652,847.60, 979,271.40 and 652,847.60

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Solution

The fourth proportional to 652,847.60, 979,271.40 and 652,847.60 is: 979,271.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,847.60 : 979,271.40 = 652,847.60 : x
  2. Step 2: Convert to fraction form
    652,847.60/979,271.40 = 652,847.60/x
  3. Step 3: Cross multiply
    652,847.60x = 979,271.40 × 652,847.60
  4. Step 4: Simplify right side
    652,847.60x = 639,314,983,238.64
  5. Step 5: Solve for x
    x = 639,314,983,238.64/652,847.60
  6. Step 6: Final answer
    x = 979,271.40

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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.