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Finding the Fourth Proportional to 529,522.68, 730,745.64 and 287,805.33

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Solution

The fourth proportional to 529,522.68, 730,745.64 and 287,805.33 is: 397,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,522.68 : 730,745.64 = 287,805.33 : x
  2. Step 2: Convert to fraction form
    529,522.68/730,745.64 = 287,805.33/x
  3. Step 3: Cross multiply
    529,522.68x = 730,745.64 × 287,805.33
  4. Step 4: Simplify right side
    529,522.68x = 210,312,490,066.26
  5. Step 5: Solve for x
    x = 210,312,490,066.26/529,522.68
  6. Step 6: Final answer
    x = 397,173.72

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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.