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Finding the Fourth Proportional to 525,960,064.80, 788,940,097.20 and 238,745,728.80

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Solution

The fourth proportional to 525,960,064.80, 788,940,097.20 and 238,745,728.80 is: 358,118,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,960,064.80 : 788,940,097.20 = 238,745,728.80 : x
  2. Step 2: Convert to fraction form
    525,960,064.80/788,940,097.20 = 238,745,728.80/x
  3. Step 3: Cross multiply
    525,960,064.80x = 788,940,097.20 × 238,745,728.80
  4. Step 4: Simplify right side
    525,960,064.80x = 188,356,078,485,556,864
  5. Step 5: Solve for x
    x = 188,356,078,485,556,864/525,960,064.80
  6. Step 6: Final answer
    x = 358,118,593.20

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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.