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Finding the Fourth Proportional to 564,642,187.60, 847,264,212.60 and 219,607,070.80

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Solution

The fourth proportional to 564,642,187.60, 847,264,212.60 and 219,607,070.80 is: 329,527,647.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,642,187.60 : 847,264,212.60 = 219,607,070.80 : x
  2. Step 2: Convert to fraction form
    564,642,187.60/847,264,212.60 = 219,607,070.80/x
  3. Step 3: Cross multiply
    564,642,187.60x = 847,264,212.60 × 219,607,070.80
  4. Step 4: Simplify right side
    564,642,187.60x = 186,065,211,922,754,464
  5. Step 5: Solve for x
    x = 186,065,211,922,754,464/564,642,187.60
  6. Step 6: Final answer
    x = 329,527,647.79

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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.