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Finding the Fourth Proportional to 372,994,799.80, 559,492,199.70 and 372,994,799.80

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Solution

The fourth proportional to 372,994,799.80, 559,492,199.70 and 372,994,799.80 is: 559,492,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,994,799.80 : 559,492,199.70 = 372,994,799.80 : x
  2. Step 2: Convert to fraction form
    372,994,799.80/559,492,199.70 = 372,994,799.80/x
  3. Step 3: Cross multiply
    372,994,799.80x = 559,492,199.70 × 372,994,799.80
  4. Step 4: Simplify right side
    372,994,799.80x = 208,687,681,016,763,136
  5. Step 5: Solve for x
    x = 208,687,681,016,763,136/372,994,799.80
  6. Step 6: Final answer
    x = 559,492,199.70

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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.