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Finding the Fourth Proportional to 491,648,442.40, 737,472,663.60 and 336,680,246.80

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Solution

The fourth proportional to 491,648,442.40, 737,472,663.60 and 336,680,246.80 is: 505,020,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,648,442.40 : 737,472,663.60 = 336,680,246.80 : x
  2. Step 2: Convert to fraction form
    491,648,442.40/737,472,663.60 = 336,680,246.80/x
  3. Step 3: Cross multiply
    491,648,442.40x = 737,472,663.60 × 336,680,246.80
  4. Step 4: Simplify right side
    491,648,442.40x = 248,292,478,389,101,408
  5. Step 5: Solve for x
    x = 248,292,478,389,101,408/491,648,442.40
  6. Step 6: Final answer
    x = 505,020,370.20

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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.