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Finding the Fourth Proportional to 553,566.24, 763,603.20 and 349,544.64

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Solution

The fourth proportional to 553,566.24, 763,603.20 and 349,544.64 is: 482,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,566.24 : 763,603.20 = 349,544.64 : x
  2. Step 2: Convert to fraction form
    553,566.24/763,603.20 = 349,544.64/x
  3. Step 3: Cross multiply
    553,566.24x = 763,603.20 × 349,544.64
  4. Step 4: Simplify right side
    553,566.24x = 266,913,405,646.85
  5. Step 5: Solve for x
    x = 266,913,405,646.85/553,566.24
  6. Step 6: Final answer
    x = 482,170.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.