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Finding the Fourth Proportional to 1,095,906.70, 1,643,860.05 and 1,053,916.30

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Solution

The fourth proportional to 1,095,906.70, 1,643,860.05 and 1,053,916.30 is: 1,580,874.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,906.70 : 1,643,860.05 = 1,053,916.30 : x
  2. Step 2: Convert to fraction form
    1,095,906.70/1,643,860.05 = 1,053,916.30/x
  3. Step 3: Cross multiply
    1,095,906.70x = 1,643,860.05 × 1,053,916.30
  4. Step 4: Simplify right side
    1,095,906.70x = 1,732,490,901,613.82
  5. Step 5: Solve for x
    x = 1,732,490,901,613.82/1,095,906.70
  6. Step 6: Final answer
    x = 1,580,874.45

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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.