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Finding the Fourth Proportional to 207,627,643.60, 311,441,465.40 and 207,627,643.60

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Solution

The fourth proportional to 207,627,643.60, 311,441,465.40 and 207,627,643.60 is: 311,441,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,627,643.60 : 311,441,465.40 = 207,627,643.60 : x
  2. Step 2: Convert to fraction form
    207,627,643.60/311,441,465.40 = 207,627,643.60/x
  3. Step 3: Cross multiply
    207,627,643.60x = 311,441,465.40 × 207,627,643.60
  4. Step 4: Simplify right side
    207,627,643.60x = 64,663,857,580,332,928
  5. Step 5: Solve for x
    x = 64,663,857,580,332,928/207,627,643.60
  6. Step 6: Final answer
    x = 311,441,465.40

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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.