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Finding the Fourth Proportional to 1,955,694.78, 2,934,384.91 and 1,057,768.74

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Solution

The fourth proportional to 1,955,694.78, 2,934,384.91 and 1,057,768.74 is: 1,587,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955,694.78 : 2,934,384.91 = 1,057,768.74 : x
  2. Step 2: Convert to fraction form
    1,955,694.78/2,934,384.91 = 1,057,768.74/x
  3. Step 3: Cross multiply
    1,955,694.78x = 2,934,384.91 × 1,057,768.74
  4. Step 4: Simplify right side
    1,955,694.78x = 3,103,900,626,281.29
  5. Step 5: Solve for x
    x = 3,103,900,626,281.29/1,955,694.78
  6. Step 6: Final answer
    x = 1,587,108.92

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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.