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Finding the Fourth Proportional to 580,336,750.90, 869,371,385.55 and 349,620,498.10

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Solution

The fourth proportional to 580,336,750.90, 869,371,385.55 and 349,620,498.10 is: 523,747,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,336,750.90 : 869,371,385.55 = 349,620,498.10 : x
  2. Step 2: Convert to fraction form
    580,336,750.90/869,371,385.55 = 349,620,498.10/x
  3. Step 3: Cross multiply
    580,336,750.90x = 869,371,385.55 × 349,620,498.10
  4. Step 4: Simplify right side
    580,336,750.90x = 303,950,056,849,878,144
  5. Step 5: Solve for x
    x = 303,950,056,849,878,144/580,336,750.90
  6. Step 6: Final answer
    x = 523,747,731.60

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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.