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Finding the Fourth Proportional to 1,584,997.59, 2,187,296.67 and 905,948.67

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Solution

The fourth proportional to 1,584,997.59, 2,187,296.67 and 905,948.67 is: 1,250,209.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584,997.59 : 2,187,296.67 = 905,948.67 : x
  2. Step 2: Convert to fraction form
    1,584,997.59/2,187,296.67 = 905,948.67/x
  3. Step 3: Cross multiply
    1,584,997.59x = 2,187,296.67 × 905,948.67
  4. Step 4: Simplify right side
    1,584,997.59x = 1,981,578,509,081.93
  5. Step 5: Solve for x
    x = 1,981,578,509,081.93/1,584,997.59
  6. Step 6: Final answer
    x = 1,250,209.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.