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Finding the Fourth Proportional to 604,578,212.40, 906,940,931.40 and 216,441,764.40

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Solution

The fourth proportional to 604,578,212.40, 906,940,931.40 and 216,441,764.40 is: 324,689,000.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,578,212.40 : 906,940,931.40 = 216,441,764.40 : x
  2. Step 2: Convert to fraction form
    604,578,212.40/906,940,931.40 = 216,441,764.40/x
  3. Step 3: Cross multiply
    604,578,212.40x = 906,940,931.40 × 216,441,764.40
  4. Step 4: Simplify right side
    604,578,212.40x = 196,299,895,398,795,360
  5. Step 5: Solve for x
    x = 196,299,895,398,795,360/604,578,212.40
  6. Step 6: Final answer
    x = 324,689,000.32

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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.