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Finding the Fourth Proportional to 379,445.40, 569,824.20 and 202,298.40

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Solution

The fourth proportional to 379,445.40, 569,824.20 and 202,298.40 is: 303,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,445.40 : 569,824.20 = 202,298.40 : x
  2. Step 2: Convert to fraction form
    379,445.40/569,824.20 = 202,298.40/x
  3. Step 3: Cross multiply
    379,445.40x = 569,824.20 × 202,298.40
  4. Step 4: Simplify right side
    379,445.40x = 115,274,523,941.28
  5. Step 5: Solve for x
    x = 115,274,523,941.28/379,445.40
  6. Step 6: Final answer
    x = 303,797.39

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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.