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Finding the Fourth Proportional to 927,148,416,003.80, 1,390,722,624,005.70 and 927,148,416,003.80

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Solution

The fourth proportional to 927,148,416,003.80, 1,390,722,624,005.70 and 927,148,416,003.80 is: 1,390,722,624,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,148,416,003.80 : 1,390,722,624,005.70 = 927,148,416,003.80 : x
  2. Step 2: Convert to fraction form
    927,148,416,003.80/1,390,722,624,005.70 = 927,148,416,003.80/x
  3. Step 3: Cross multiply
    927,148,416,003.80x = 1,390,722,624,005.70 × 927,148,416,003.80
  4. Step 4: Simplify right side
    927,148,416,003.80x = 1,289,406,277,947,533,018,791,936
  5. Step 5: Solve for x
    x = 1,289,406,277,947,533,018,791,936/927,148,416,003.80
  6. Step 6: Final answer
    x = 1,390,722,624,005.70

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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.