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Finding the Fourth Proportional to 556,536,896.80, 834,553,402.80 and 211,375,808.80

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Solution

The fourth proportional to 556,536,896.80, 834,553,402.80 and 211,375,808.80 is: 316,968,024.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,536,896.80 : 834,553,402.80 = 211,375,808.80 : x
  2. Step 2: Convert to fraction form
    556,536,896.80/834,553,402.80 = 211,375,808.80/x
  3. Step 3: Cross multiply
    556,536,896.80x = 834,553,402.80 × 211,375,808.80
  4. Step 4: Simplify right side
    556,536,896.80x = 176,404,400,503,642,176
  5. Step 5: Solve for x
    x = 176,404,400,503,642,176/556,536,896.80
  6. Step 6: Final answer
    x = 316,968,024.08

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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.