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Finding the Fourth Proportional to 559,872,076.20, 839,808,114.30 and 377,129,855.40

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Solution

The fourth proportional to 559,872,076.20, 839,808,114.30 and 377,129,855.40 is: 565,694,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,076.20 : 839,808,114.30 = 377,129,855.40 : x
  2. Step 2: Convert to fraction form
    559,872,076.20/839,808,114.30 = 377,129,855.40/x
  3. Step 3: Cross multiply
    559,872,076.20x = 839,808,114.30 × 377,129,855.40
  4. Step 4: Simplify right side
    559,872,076.20x = 316,716,712,709,705,664
  5. Step 5: Solve for x
    x = 316,716,712,709,705,664/559,872,076.20
  6. Step 6: Final answer
    x = 565,694,783.10

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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.