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Finding the Fourth Proportional to 992,890,113.92, 1,370,250,584.33 and 546,853,388.48

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Solution

The fourth proportional to 992,890,113.92, 1,370,250,584.33 and 546,853,388.48 is: 754,691,948.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,890,113.92 : 1,370,250,584.33 = 546,853,388.48 : x
  2. Step 2: Convert to fraction form
    992,890,113.92/1,370,250,584.33 = 546,853,388.48/x
  3. Step 3: Cross multiply
    992,890,113.92x = 1,370,250,584.33 × 546,853,388.48
  4. Step 4: Simplify right side
    992,890,113.92x = 749,326,175,097,975,040
  5. Step 5: Solve for x
    x = 749,326,175,097,975,040/992,890,113.92
  6. Step 6: Final answer
    x = 754,691,948.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.