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Finding the Fourth Proportional to 299,017,345.20, 448,526,017.80 and 294,986,266.80

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Solution

The fourth proportional to 299,017,345.20, 448,526,017.80 and 294,986,266.80 is: 442,479,400.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,017,345.20 : 448,526,017.80 = 294,986,266.80 : x
  2. Step 2: Convert to fraction form
    299,017,345.20/448,526,017.80 = 294,986,266.80/x
  3. Step 3: Cross multiply
    299,017,345.20x = 448,526,017.80 × 294,986,266.80
  4. Step 4: Simplify right side
    299,017,345.20x = 132,309,015,553,492,352
  5. Step 5: Solve for x
    x = 132,309,015,553,492,352/299,017,345.20
  6. Step 6: Final answer
    x = 442,479,400.20

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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.