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Finding the Fourth Proportional to 358,775,574.30, 538,163,361.45 and 358,775,574.30

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Solution

The fourth proportional to 358,775,574.30, 538,163,361.45 and 358,775,574.30 is: 538,163,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,775,574.30 : 538,163,361.45 = 358,775,574.30 : x
  2. Step 2: Convert to fraction form
    358,775,574.30/538,163,361.45 = 358,775,574.30/x
  3. Step 3: Cross multiply
    358,775,574.30x = 538,163,361.45 × 358,775,574.30
  4. Step 4: Simplify right side
    358,775,574.30x = 193,079,869,071,442,240
  5. Step 5: Solve for x
    x = 193,079,869,071,442,240/358,775,574.30
  6. Step 6: Final answer
    x = 538,163,361.45

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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.