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Finding the Fourth Proportional to 692,181,469.74, 955,210,351.14 and 374,641,661.46

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Solution

The fourth proportional to 692,181,469.74, 955,210,351.14 and 374,641,661.46 is: 517,005,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,181,469.74 : 955,210,351.14 = 374,641,661.46 : x
  2. Step 2: Convert to fraction form
    692,181,469.74/955,210,351.14 = 374,641,661.46/x
  3. Step 3: Cross multiply
    692,181,469.74x = 955,210,351.14 × 374,641,661.46
  4. Step 4: Simplify right side
    692,181,469.74x = 357,861,592,994,879,552
  5. Step 5: Solve for x
    x = 357,861,592,994,879,552/692,181,469.74
  6. Step 6: Final answer
    x = 517,005,451.08

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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.