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Finding the Fourth Proportional to 1,998,336.70, 2,996,848.95 and 736,000.30

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Solution

The fourth proportional to 1,998,336.70, 2,996,848.95 and 736,000.30 is: 1,103,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,336.70 : 2,996,848.95 = 736,000.30 : x
  2. Step 2: Convert to fraction form
    1,998,336.70/2,996,848.95 = 736,000.30/x
  3. Step 3: Cross multiply
    1,998,336.70x = 2,996,848.95 × 736,000.30
  4. Step 4: Simplify right side
    1,998,336.70x = 2,205,681,726,254.69
  5. Step 5: Solve for x
    x = 2,205,681,726,254.69/1,998,336.70
  6. Step 6: Final answer
    x = 1,103,758.80

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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.