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Finding the Fourth Proportional to 217,219,629.40, 325,829,444.10 and 217,219,629.40

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Solution

The fourth proportional to 217,219,629.40, 325,829,444.10 and 217,219,629.40 is: 325,829,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,219,629.40 : 325,829,444.10 = 217,219,629.40 : x
  2. Step 2: Convert to fraction form
    217,219,629.40/325,829,444.10 = 217,219,629.40/x
  3. Step 3: Cross multiply
    217,219,629.40x = 325,829,444.10 × 217,219,629.40
  4. Step 4: Simplify right side
    217,219,629.40x = 70,776,551,095,010,024
  5. Step 5: Solve for x
    x = 70,776,551,095,010,024/217,219,629.40
  6. Step 6: Final answer
    x = 325,829,444.10

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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.