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Finding the Fourth Proportional to 499,392.21, 750,712.23 and 400,632.83

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Solution

The fourth proportional to 499,392.21, 750,712.23 and 400,632.83 is: 602,252.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,392.21 : 750,712.23 = 400,632.83 : x
  2. Step 2: Convert to fraction form
    499,392.21/750,712.23 = 400,632.83/x
  3. Step 3: Cross multiply
    499,392.21x = 750,712.23 × 400,632.83
  4. Step 4: Simplify right side
    499,392.21x = 300,759,961,466.95
  5. Step 5: Solve for x
    x = 300,759,961,466.95/499,392.21
  6. Step 6: Final answer
    x = 602,252.01

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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.