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Finding the Fourth Proportional to 6,501,809.40, 8,972,398.14 and 3,561,602.94

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Solution

The fourth proportional to 6,501,809.40, 8,972,398.14 and 3,561,602.94 is: 4,914,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,501,809.40 : 8,972,398.14 = 3,561,602.94 : x
  2. Step 2: Convert to fraction form
    6,501,809.40/8,972,398.14 = 3,561,602.94/x
  3. Step 3: Cross multiply
    6,501,809.40x = 8,972,398.14 × 3,561,602.94
  4. Step 4: Simplify right side
    6,501,809.40x = 31,956,119,594,274.54
  5. Step 5: Solve for x
    x = 31,956,119,594,274.54/6,501,809.40
  6. Step 6: Final answer
    x = 4,914,957.92

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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.