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Finding the Fourth Proportional to 6,385,603.70, 9,578,405.55 and 6,133,661.30

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Solution

The fourth proportional to 6,385,603.70, 9,578,405.55 and 6,133,661.30 is: 9,200,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,385,603.70 : 9,578,405.55 = 6,133,661.30 : x
  2. Step 2: Convert to fraction form
    6,385,603.70/9,578,405.55 = 6,133,661.30/x
  3. Step 3: Cross multiply
    6,385,603.70x = 9,578,405.55 × 6,133,661.30
  4. Step 4: Simplify right side
    6,385,603.70x = 58,750,695,437,740.22
  5. Step 5: Solve for x
    x = 58,750,695,437,740.22/6,385,603.70
  6. Step 6: Final answer
    x = 9,200,491.95

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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.