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Finding the Fourth Proportional to 802,121,617,666.45, 1,203,182,426,499.70 and 802,121,617,666.45

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Solution

The fourth proportional to 802,121,617,666.45, 1,203,182,426,499.70 and 802,121,617,666.45 is: 1,203,182,426,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,121,617,666.45 : 1,203,182,426,499.70 = 802,121,617,666.45 : x
  2. Step 2: Convert to fraction form
    802,121,617,666.45/1,203,182,426,499.70 = 802,121,617,666.45/x
  3. Step 3: Cross multiply
    802,121,617,666.45x = 1,203,182,426,499.70 × 802,121,617,666.45
  4. Step 4: Simplify right side
    802,121,617,666.45x = 965,098,634,291,783,820,902,400
  5. Step 5: Solve for x
    x = 965,098,634,291,783,820,902,400/802,121,617,666.45
  6. Step 6: Final answer
    x = 1,203,182,426,499.70

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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.