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Finding the Fourth Proportional to 1,869,154.02, 2,579,429.22 and 1,009,711.62

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Solution

The fourth proportional to 1,869,154.02, 2,579,429.22 and 1,009,711.62 is: 1,393,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869,154.02 : 2,579,429.22 = 1,009,711.62 : x
  2. Step 2: Convert to fraction form
    1,869,154.02/2,579,429.22 = 1,009,711.62/x
  3. Step 3: Cross multiply
    1,869,154.02x = 2,579,429.22 × 1,009,711.62
  4. Step 4: Simplify right side
    1,869,154.02x = 2,604,479,656,401.54
  5. Step 5: Solve for x
    x = 2,604,479,656,401.54/1,869,154.02
  6. Step 6: Final answer
    x = 1,393,400.24

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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.