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Finding the Fourth Proportional to 559,872,420.40, 839,808,630.60 and 395,046,103.60

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Solution

The fourth proportional to 559,872,420.40, 839,808,630.60 and 395,046,103.60 is: 592,569,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,420.40 : 839,808,630.60 = 395,046,103.60 : x
  2. Step 2: Convert to fraction form
    559,872,420.40/839,808,630.60 = 395,046,103.60/x
  3. Step 3: Cross multiply
    559,872,420.40x = 839,808,630.60 × 395,046,103.60
  4. Step 4: Simplify right side
    559,872,420.40x = 331,763,127,288,181,760
  5. Step 5: Solve for x
    x = 331,763,127,288,181,760/559,872,420.40
  6. Step 6: Final answer
    x = 592,569,155.40

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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.