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Finding the Fourth Proportional to 315,223.60, 472,203.73 and 298,666.12

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Solution

The fourth proportional to 315,223.60, 472,203.73 and 298,666.12 is: 447,400.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,223.60 : 472,203.73 = 298,666.12 : x
  2. Step 2: Convert to fraction form
    315,223.60/472,203.73 = 298,666.12/x
  3. Step 3: Cross multiply
    315,223.60x = 472,203.73 × 298,666.12
  4. Step 4: Simplify right side
    315,223.60x = 141,031,252,034.28
  5. Step 5: Solve for x
    x = 141,031,252,034.28/315,223.60
  6. Step 6: Final answer
    x = 447,400.68

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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.