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Finding the Fourth Proportional to 40,398,814.20, 56,701,828.96 and 40,398,814.20

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Solution

The fourth proportional to 40,398,814.20, 56,701,828.96 and 40,398,814.20 is: 56,701,828.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,398,814.20 : 56,701,828.96 = 40,398,814.20 : x
  2. Step 2: Convert to fraction form
    40,398,814.20/56,701,828.96 = 40,398,814.20/x
  3. Step 3: Cross multiply
    40,398,814.20x = 56,701,828.96 × 40,398,814.20
  4. Step 4: Simplify right side
    40,398,814.20x = 2,290,686,652,955,219.50
  5. Step 5: Solve for x
    x = 2,290,686,652,955,219.50/40,398,814.20
  6. Step 6: Final answer
    x = 56,701,828.96

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.