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Finding the Fourth Proportional to 927,148,032,003.90, 1,390,722,048,005.90 and 927,148,032,003.90

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Solution

The fourth proportional to 927,148,032,003.90, 1,390,722,048,005.90 and 927,148,032,003.90 is: 1,390,722,048,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,148,032,003.90 : 1,390,722,048,005.90 = 927,148,032,003.90 : x
  2. Step 2: Convert to fraction form
    927,148,032,003.90/1,390,722,048,005.90 = 927,148,032,003.90/x
  3. Step 3: Cross multiply
    927,148,032,003.90x = 1,390,722,048,005.90 × 927,148,032,003.90
  4. Step 4: Simplify right side
    927,148,032,003.90x = 1,289,405,209,873,103,586,328,576
  5. Step 5: Solve for x
    x = 1,289,405,209,873,103,586,328,576/927,148,032,003.90
  6. Step 6: Final answer
    x = 1,390,722,048,005.90

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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.