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Finding the Fourth Proportional to 559,872,562.40, 839,808,843.60 and 519,057,893.60

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Solution

The fourth proportional to 559,872,562.40, 839,808,843.60 and 519,057,893.60 is: 778,586,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,562.40 : 839,808,843.60 = 519,057,893.60 : x
  2. Step 2: Convert to fraction form
    559,872,562.40/839,808,843.60 = 519,057,893.60/x
  3. Step 3: Cross multiply
    559,872,562.40x = 839,808,843.60 × 519,057,893.60
  4. Step 4: Simplify right side
    559,872,562.40x = 435,909,409,385,667,904
  5. Step 5: Solve for x
    x = 435,909,409,385,667,904/559,872,562.40
  6. Step 6: Final answer
    x = 778,586,840.40

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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.