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Finding the Fourth Proportional to 1,010,400,803.20, 1,515,601,204.80 and 1,010,400,803.20

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Solution

The fourth proportional to 1,010,400,803.20, 1,515,601,204.80 and 1,010,400,803.20 is: 1,515,601,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,400,803.20 : 1,515,601,204.80 = 1,010,400,803.20 : x
  2. Step 2: Convert to fraction form
    1,010,400,803.20/1,515,601,204.80 = 1,010,400,803.20/x
  3. Step 3: Cross multiply
    1,010,400,803.20x = 1,515,601,204.80 × 1,010,400,803.20
  4. Step 4: Simplify right side
    1,010,400,803.20x = 1,531,364,674,660,807,680
  5. Step 5: Solve for x
    x = 1,531,364,674,660,807,680/1,010,400,803.20
  6. Step 6: Final answer
    x = 1,515,601,204.80

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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.