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Finding the Fourth Proportional to 529,477.08, 730,684.01 and 287,759.66

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Solution

The fourth proportional to 529,477.08, 730,684.01 and 287,759.66 is: 397,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,477.08 : 730,684.01 = 287,759.66 : x
  2. Step 2: Convert to fraction form
    529,477.08/730,684.01 = 287,759.66/x
  3. Step 3: Cross multiply
    529,477.08x = 730,684.01 × 287,759.66
  4. Step 4: Simplify right side
    529,477.08x = 210,261,382,285.04
  5. Step 5: Solve for x
    x = 210,261,382,285.04/529,477.08
  6. Step 6: Final answer
    x = 397,111.40

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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.