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Finding the Fourth Proportional to 293,442,046.40, 440,163,069.60 and 268,359,780.80

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Solution

The fourth proportional to 293,442,046.40, 440,163,069.60 and 268,359,780.80 is: 402,539,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,442,046.40 : 440,163,069.60 = 268,359,780.80 : x
  2. Step 2: Convert to fraction form
    293,442,046.40/440,163,069.60 = 268,359,780.80/x
  3. Step 3: Cross multiply
    293,442,046.40x = 440,163,069.60 × 268,359,780.80
  4. Step 4: Simplify right side
    293,442,046.40x = 118,122,064,874,111,152
  5. Step 5: Solve for x
    x = 118,122,064,874,111,152/293,442,046.40
  6. Step 6: Final answer
    x = 402,539,671.20

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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.