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Finding the Fourth Proportional to 374,876.20, 562,314.30 and 217,412.20

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Solution

The fourth proportional to 374,876.20, 562,314.30 and 217,412.20 is: 326,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,876.20 : 562,314.30 = 217,412.20 : x
  2. Step 2: Convert to fraction form
    374,876.20/562,314.30 = 217,412.20/x
  3. Step 3: Cross multiply
    374,876.20x = 562,314.30 × 217,412.20
  4. Step 4: Simplify right side
    374,876.20x = 122,253,989,054.46
  5. Step 5: Solve for x
    x = 122,253,989,054.46/374,876.20
  6. Step 6: Final answer
    x = 326,118.30

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1.5x scale

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.