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Finding the Fourth Proportional to 289,792,064.80, 434,688,097.20 and 289,792,064.80

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Solution

The fourth proportional to 289,792,064.80, 434,688,097.20 and 289,792,064.80 is: 434,688,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,792,064.80 : 434,688,097.20 = 289,792,064.80 : x
  2. Step 2: Convert to fraction form
    289,792,064.80/434,688,097.20 = 289,792,064.80/x
  3. Step 3: Cross multiply
    289,792,064.80x = 434,688,097.20 × 289,792,064.80
  4. Step 4: Simplify right side
    289,792,064.80x = 125,969,161,231,571,104
  5. Step 5: Solve for x
    x = 125,969,161,231,571,104/289,792,064.80
  6. Step 6: Final answer
    x = 434,688,097.20

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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.