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Finding the Fourth Proportional to 5,308,339.80, 7,962,509.70 and 5,076,096.60

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Solution

The fourth proportional to 5,308,339.80, 7,962,509.70 and 5,076,096.60 is: 7,614,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308,339.80 : 7,962,509.70 = 5,076,096.60 : x
  2. Step 2: Convert to fraction form
    5,308,339.80/7,962,509.70 = 5,076,096.60/x
  3. Step 3: Cross multiply
    5,308,339.80x = 7,962,509.70 × 5,076,096.60
  4. Step 4: Simplify right side
    5,308,339.80x = 40,418,468,415,637.02
  5. Step 5: Solve for x
    x = 40,418,468,415,637.02/5,308,339.80
  6. Step 6: Final answer
    x = 7,614,144.90

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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.