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Finding the Fourth Proportional to 524,455,573.20, 786,683,359.80 and 252,357,781.20

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Solution

The fourth proportional to 524,455,573.20, 786,683,359.80 and 252,357,781.20 is: 378,536,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,455,573.20 : 786,683,359.80 = 252,357,781.20 : x
  2. Step 2: Convert to fraction form
    524,455,573.20/786,683,359.80 = 252,357,781.20/x
  3. Step 3: Cross multiply
    524,455,573.20x = 786,683,359.80 × 252,357,781.20
  4. Step 4: Simplify right side
    524,455,573.20x = 198,525,667,186,089,248
  5. Step 5: Solve for x
    x = 198,525,667,186,089,248/524,455,573.20
  6. Step 6: Final answer
    x = 378,536,671.80

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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.