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Finding the Fourth Proportional to 9,998,200.80, 14,997,301.20 and 6,596,978.40

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Solution

The fourth proportional to 9,998,200.80, 14,997,301.20 and 6,596,978.40 is: 9,895,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998,200.80 : 14,997,301.20 = 6,596,978.40 : x
  2. Step 2: Convert to fraction form
    9,998,200.80/14,997,301.20 = 6,596,978.40/x
  3. Step 3: Cross multiply
    9,998,200.80x = 14,997,301.20 × 6,596,978.40
  4. Step 4: Simplify right side
    9,998,200.80x = 98,936,872,074,694.08
  5. Step 5: Solve for x
    x = 98,936,872,074,694.08/9,998,200.80
  6. Step 6: Final answer
    x = 9,895,467.60

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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.