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Finding the Fourth Proportional to 407,373, 562,174.74 and 228,525

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Solution

The fourth proportional to 407,373, 562,174.74 and 228,525 is: 315,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,373 : 562,174.74 = 228,525 : x
  2. Step 2: Convert to fraction form
    407,373/562,174.74 = 228,525/x
  3. Step 3: Cross multiply
    407,373x = 562,174.74 × 228,525
  4. Step 4: Simplify right side
    407,373x = 128,470,982,458.50
  5. Step 5: Solve for x
    x = 128,470,982,458.50/407,373
  6. Step 6: Final answer
    x = 315,364.50

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1.5x scale

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.