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Finding the Fourth Proportional to 529,182.41, 730,272.32 and 287,464.98

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Solution

The fourth proportional to 529,182.41, 730,272.32 and 287,464.98 is: 396,702.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,182.41 : 730,272.32 = 287,464.98 : x
  2. Step 2: Convert to fraction form
    529,182.41/730,272.32 = 287,464.98/x
  3. Step 3: Cross multiply
    529,182.41x = 730,272.32 × 287,464.98
  4. Step 4: Simplify right side
    529,182.41x = 209,927,716,426.03
  5. Step 5: Solve for x
    x = 209,927,716,426.03/529,182.41
  6. Step 6: Final answer
    x = 396,702.00

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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.