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Finding the Fourth Proportional to 662,257,360.40, 993,386,040.60 and 225,412,858.40

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Solution

The fourth proportional to 662,257,360.40, 993,386,040.60 and 225,412,858.40 is: 338,119,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,257,360.40 : 993,386,040.60 = 225,412,858.40 : x
  2. Step 2: Convert to fraction form
    662,257,360.40/993,386,040.60 = 225,412,858.40/x
  3. Step 3: Cross multiply
    662,257,360.40x = 993,386,040.60 × 225,412,858.40
  4. Step 4: Simplify right side
    662,257,360.40x = 223,921,986,906,304,448
  5. Step 5: Solve for x
    x = 223,921,986,906,304,448/662,257,360.40
  6. Step 6: Final answer
    x = 338,119,287.60

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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.