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Finding the Fourth Proportional to 5,335,019.70, 7,978,909.95 and 4,484,714.10

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Solution

The fourth proportional to 5,335,019.70, 7,978,909.95 and 4,484,714.10 is: 6,707,216.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,335,019.70 : 7,978,909.95 = 4,484,714.10 : x
  2. Step 2: Convert to fraction form
    5,335,019.70/7,978,909.95 = 4,484,714.10/x
  3. Step 3: Cross multiply
    5,335,019.70x = 7,978,909.95 × 4,484,714.10
  4. Step 4: Simplify right side
    5,335,019.70x = 35,783,129,955,395.29
  5. Step 5: Solve for x
    x = 35,783,129,955,395.29/5,335,019.70
  6. Step 6: Final answer
    x = 6,707,216.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.