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Finding the Fourth Proportional to 1,010,405,091.80, 1,515,607,637.70 and 996,800,202.20

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Solution

The fourth proportional to 1,010,405,091.80, 1,515,607,637.70 and 996,800,202.20 is: 1,495,200,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,405,091.80 : 1,515,607,637.70 = 996,800,202.20 : x
  2. Step 2: Convert to fraction form
    1,010,405,091.80/1,515,607,637.70 = 996,800,202.20/x
  3. Step 3: Cross multiply
    1,010,405,091.80x = 1,515,607,637.70 × 996,800,202.20
  4. Step 4: Simplify right side
    1,010,405,091.80x = 1,510,757,999,715,224,576
  5. Step 5: Solve for x
    x = 1,510,757,999,715,224,576/1,010,405,091.80
  6. Step 6: Final answer
    x = 1,495,200,303.30

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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.