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Finding the Fourth Proportional to 8,798,946.30, 13,198,419.45 and 5,019,810.30

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Solution

The fourth proportional to 8,798,946.30, 13,198,419.45 and 5,019,810.30 is: 7,529,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798,946.30 : 13,198,419.45 = 5,019,810.30 : x
  2. Step 2: Convert to fraction form
    8,798,946.30/13,198,419.45 = 5,019,810.30/x
  3. Step 3: Cross multiply
    8,798,946.30x = 13,198,419.45 × 5,019,810.30
  4. Step 4: Simplify right side
    8,798,946.30x = 66,253,561,898,830.33
  5. Step 5: Solve for x
    x = 66,253,561,898,830.33/8,798,946.30
  6. Step 6: Final answer
    x = 7,529,715.45

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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.