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Finding the Fourth Proportional to 1,502,686, 2,073,706.68 and 823,607.92

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Solution

The fourth proportional to 1,502,686, 2,073,706.68 and 823,607.92 is: 1,136,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502,686 : 2,073,706.68 = 823,607.92 : x
  2. Step 2: Convert to fraction form
    1,502,686/2,073,706.68 = 823,607.92/x
  3. Step 3: Cross multiply
    1,502,686x = 2,073,706.68 × 823,607.92
  4. Step 4: Simplify right side
    1,502,686x = 1,707,921,245,404.91
  5. Step 5: Solve for x
    x = 1,707,921,245,404.91/1,502,686
  6. Step 6: Final answer
    x = 1,136,578.93

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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.