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Finding the Fourth Proportional to 524,594,515.20, 787,395,657.60 and 266,101,612.80

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Solution

The fourth proportional to 524,594,515.20, 787,395,657.60 and 266,101,612.80 is: 399,408,015.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,594,515.20 : 787,395,657.60 = 266,101,612.80 : x
  2. Step 2: Convert to fraction form
    524,594,515.20/787,395,657.60 = 266,101,612.80/x
  3. Step 3: Cross multiply
    524,594,515.20x = 787,395,657.60 × 266,101,612.80
  4. Step 4: Simplify right side
    524,594,515.20x = 209,527,254,399,076,608
  5. Step 5: Solve for x
    x = 209,527,254,399,076,608/524,594,515.20
  6. Step 6: Final answer
    x = 399,408,015.77

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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.