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Finding the Fourth Proportional to 664,852,214.70, 997,278,322.05 and 664,852,214.70

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Solution

The fourth proportional to 664,852,214.70, 997,278,322.05 and 664,852,214.70 is: 997,278,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,852,214.70 : 997,278,322.05 = 664,852,214.70 : x
  2. Step 2: Convert to fraction form
    664,852,214.70/997,278,322.05 = 664,852,214.70/x
  3. Step 3: Cross multiply
    664,852,214.70x = 997,278,322.05 × 664,852,214.70
  4. Step 4: Simplify right side
    664,852,214.70x = 663,042,701,087,242,368
  5. Step 5: Solve for x
    x = 663,042,701,087,242,368/664,852,214.70
  6. Step 6: Final answer
    x = 997,278,322.05

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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.