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Finding the Fourth Proportional to 489,945,132,000.90, 734,917,698,001.36 and 489,945,132,000.90

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Solution

The fourth proportional to 489,945,132,000.90, 734,917,698,001.36 and 489,945,132,000.90 is: 734,917,698,001.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,945,132,000.90 : 734,917,698,001.36 = 489,945,132,000.90 : x
  2. Step 2: Convert to fraction form
    489,945,132,000.90/734,917,698,001.36 = 489,945,132,000.90/x
  3. Step 3: Cross multiply
    489,945,132,000.90x = 734,917,698,001.36 × 489,945,132,000.90
  4. Step 4: Simplify right side
    489,945,132,000.90x = 360,069,348,557,073,888,051,200
  5. Step 5: Solve for x
    x = 360,069,348,557,073,888,051,200/489,945,132,000.90
  6. Step 6: Final answer
    x = 734,917,698,001.36

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Double scale
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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.