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Finding the Fourth Proportional to 1,604,213, 2,213,813.94 and 888,821

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Solution

The fourth proportional to 1,604,213, 2,213,813.94 and 888,821 is: 1,226,572.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604,213 : 2,213,813.94 = 888,821 : x
  2. Step 2: Convert to fraction form
    1,604,213/2,213,813.94 = 888,821/x
  3. Step 3: Cross multiply
    1,604,213x = 2,213,813.94 × 888,821
  4. Step 4: Simplify right side
    1,604,213x = 1,967,684,319,964.74
  5. Step 5: Solve for x
    x = 1,967,684,319,964.74/1,604,213
  6. Step 6: Final answer
    x = 1,226,572.98

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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.