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Finding the Fourth Proportional to 1,151,572.80, 1,610,102.40 and 1,151,572.80

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Solution

The fourth proportional to 1,151,572.80, 1,610,102.40 and 1,151,572.80 is: 1,610,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,572.80 : 1,610,102.40 = 1,151,572.80 : x
  2. Step 2: Convert to fraction form
    1,151,572.80/1,610,102.40 = 1,151,572.80/x
  3. Step 3: Cross multiply
    1,151,572.80x = 1,610,102.40 × 1,151,572.80
  4. Step 4: Simplify right side
    1,151,572.80x = 1,854,150,129,054.72
  5. Step 5: Solve for x
    x = 1,854,150,129,054.72/1,151,572.80
  6. Step 6: Final answer
    x = 1,610,102.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.