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Finding the Fourth Proportional to 518,349.40, 777,629.80 and 293,810.11

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Solution

The fourth proportional to 518,349.40, 777,629.80 and 293,810.11 is: 440,775.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,349.40 : 777,629.80 = 293,810.11 : x
  2. Step 2: Convert to fraction form
    518,349.40/777,629.80 = 293,810.11/x
  3. Step 3: Cross multiply
    518,349.40x = 777,629.80 × 293,810.11
  4. Step 4: Simplify right side
    518,349.40x = 228,475,497,077.28
  5. Step 5: Solve for x
    x = 228,475,497,077.28/518,349.40
  6. Step 6: Final answer
    x = 440,775.08

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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.