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Finding the Fourth Proportional to 1,709,789.64, 2,359,501.07 and 935,406.48

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Solution

The fourth proportional to 1,709,789.64, 2,359,501.07 and 935,406.48 is: 1,290,856.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709,789.64 : 2,359,501.07 = 935,406.48 : x
  2. Step 2: Convert to fraction form
    1,709,789.64/2,359,501.07 = 935,406.48/x
  3. Step 3: Cross multiply
    1,709,789.64x = 2,359,501.07 × 935,406.48
  4. Step 4: Simplify right side
    1,709,789.64x = 2,207,092,590,444.93
  5. Step 5: Solve for x
    x = 2,207,092,590,444.93/1,709,789.64
  6. Step 6: Final answer
    x = 1,290,856.22

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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.