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Finding the Fourth Proportional to 652,618,472.16, 978,960,236.76 and 186,349,051.56

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Solution

The fourth proportional to 652,618,472.16, 978,960,236.76 and 186,349,051.56 is: 279,532,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,618,472.16 : 978,960,236.76 = 186,349,051.56 : x
  2. Step 2: Convert to fraction form
    652,618,472.16/978,960,236.76 = 186,349,051.56/x
  3. Step 3: Cross multiply
    652,618,472.16x = 978,960,236.76 × 186,349,051.56
  4. Step 4: Simplify right side
    652,618,472.16x = 182,428,311,635,179,040
  5. Step 5: Solve for x
    x = 182,428,311,635,179,040/652,618,472.16
  6. Step 6: Final answer
    x = 279,532,865.55

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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.