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Finding the Fourth Proportional to 529,549, 730,274.68 and 348,414.64

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Solution

The fourth proportional to 529,549, 730,274.68 and 348,414.64 is: 480,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,549 : 730,274.68 = 348,414.64 : x
  2. Step 2: Convert to fraction form
    529,549/730,274.68 = 348,414.64/x
  3. Step 3: Cross multiply
    529,549x = 730,274.68 × 348,414.64
  4. Step 4: Simplify right side
    529,549x = 254,438,389,733.32
  5. Step 5: Solve for x
    x = 254,438,389,733.32/529,549
  6. Step 6: Final answer
    x = 480,481.30

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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.