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Finding the Fourth Proportional to 896,798,672.70, 1,345,198,009.05 and 550,629,815.10

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Solution

The fourth proportional to 896,798,672.70, 1,345,198,009.05 and 550,629,815.10 is: 825,944,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,798,672.70 : 1,345,198,009.05 = 550,629,815.10 : x
  2. Step 2: Convert to fraction form
    896,798,672.70/1,345,198,009.05 = 550,629,815.10/x
  3. Step 3: Cross multiply
    896,798,672.70x = 1,345,198,009.05 × 550,629,815.10
  4. Step 4: Simplify right side
    896,798,672.70x = 740,706,130,996,089,600
  5. Step 5: Solve for x
    x = 740,706,130,996,089,600/896,798,672.70
  6. Step 6: Final answer
    x = 825,944,722.65

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Double scale
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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.