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Finding the Fourth Proportional to 606,465.70, 909,807.90 and 251,515.60

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Solution

The fourth proportional to 606,465.70, 909,807.90 and 251,515.60 is: 377,318.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,465.70 : 909,807.90 = 251,515.60 : x
  2. Step 2: Convert to fraction form
    606,465.70/909,807.90 = 251,515.60/x
  3. Step 3: Cross multiply
    606,465.70x = 909,807.90 × 251,515.60
  4. Step 4: Simplify right side
    606,465.70x = 228,830,879,853.24
  5. Step 5: Solve for x
    x = 228,830,879,853.24/606,465.70
  6. Step 6: Final answer
    x = 377,318.75

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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.