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Finding the Fourth Proportional to 6,862,799.34, 9,471,798.45 and 3,807,997.74

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Solution

The fourth proportional to 6,862,799.34, 9,471,798.45 and 3,807,997.74 is: 5,255,666.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,862,799.34 : 9,471,798.45 = 3,807,997.74 : x
  2. Step 2: Convert to fraction form
    6,862,799.34/9,471,798.45 = 3,807,997.74/x
  3. Step 3: Cross multiply
    6,862,799.34x = 9,471,798.45 × 3,807,997.74
  4. Step 4: Simplify right side
    6,862,799.34x = 36,068,587,091,335.50
  5. Step 5: Solve for x
    x = 36,068,587,091,335.50/6,862,799.34
  6. Step 6: Final answer
    x = 5,255,666.86

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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.