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Finding the Fourth Proportional to 1,330,500.90, 1,992,798.90 and 1,153,353.90

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Solution

The fourth proportional to 1,330,500.90, 1,992,798.90 and 1,153,353.90 is: 1,727,471.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,500.90 : 1,992,798.90 = 1,153,353.90 : x
  2. Step 2: Convert to fraction form
    1,330,500.90/1,992,798.90 = 1,153,353.90/x
  3. Step 3: Cross multiply
    1,330,500.90x = 1,992,798.90 × 1,153,353.90
  4. Step 4: Simplify right side
    1,330,500.90x = 2,298,402,383,230.71
  5. Step 5: Solve for x
    x = 2,298,402,383,230.71/1,330,500.90
  6. Step 6: Final answer
    x = 1,727,471.50

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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.