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Finding the Fourth Proportional to 529,545, 730,269.18 and 348,410.64

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Solution

The fourth proportional to 529,545, 730,269.18 and 348,410.64 is: 480,475.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,545 : 730,269.18 = 348,410.64 : x
  2. Step 2: Convert to fraction form
    529,545/730,269.18 = 348,410.64/x
  3. Step 3: Cross multiply
    529,545x = 730,269.18 × 348,410.64
  4. Step 4: Simplify right side
    529,545x = 254,433,552,376.08
  5. Step 5: Solve for x
    x = 254,433,552,376.08/529,545
  6. Step 6: Final answer
    x = 480,475.79

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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.