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Finding the Fourth Proportional to 529,036.64, 730,186.82 and 347,765.32

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Solution

The fourth proportional to 529,036.64, 730,186.82 and 347,765.32 is: 479,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,036.64 : 730,186.82 = 347,765.32 : x
  2. Step 2: Convert to fraction form
    529,036.64/730,186.82 = 347,765.32/x
  3. Step 3: Cross multiply
    529,036.64x = 730,186.82 × 347,765.32
  4. Step 4: Simplify right side
    529,036.64x = 253,933,653,117.08
  5. Step 5: Solve for x
    x = 253,933,653,117.08/529,036.64
  6. Step 6: Final answer
    x = 479,992.56

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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.