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Finding the Fourth Proportional to 548,722.35, 824,465.93 and 349,138.35

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Solution

The fourth proportional to 548,722.35, 824,465.93 and 349,138.35 is: 524,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,722.35 : 824,465.93 = 349,138.35 : x
  2. Step 2: Convert to fraction form
    548,722.35/824,465.93 = 349,138.35/x
  3. Step 3: Cross multiply
    548,722.35x = 824,465.93 × 349,138.35
  4. Step 4: Simplify right side
    548,722.35x = 287,852,672,685.72
  5. Step 5: Solve for x
    x = 287,852,672,685.72/548,722.35
  6. Step 6: Final answer
    x = 524,587.11

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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.