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Finding the Fourth Proportional to 6,822,616.78, 9,411,812.19 and 4,067,362.76

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Solution

The fourth proportional to 6,822,616.78, 9,411,812.19 and 4,067,362.76 is: 5,610,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,822,616.78 : 9,411,812.19 = 4,067,362.76 : x
  2. Step 2: Convert to fraction form
    6,822,616.78/9,411,812.19 = 4,067,362.76/x
  3. Step 3: Cross multiply
    6,822,616.78x = 9,411,812.19 × 4,067,362.76
  4. Step 4: Simplify right side
    6,822,616.78x = 38,281,254,426,633.70
  5. Step 5: Solve for x
    x = 38,281,254,426,633.70/6,822,616.78
  6. Step 6: Final answer
    x = 5,610,934.29

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1.5x scale

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.