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Finding the Fourth Proportional to 539,586.72, 744,640.56 and 297,868.32

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Solution

The fourth proportional to 539,586.72, 744,640.56 and 297,868.32 is: 411,064.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,586.72 : 744,640.56 = 297,868.32 : x
  2. Step 2: Convert to fraction form
    539,586.72/744,640.56 = 297,868.32/x
  3. Step 3: Cross multiply
    539,586.72x = 744,640.56 × 297,868.32
  4. Step 4: Simplify right side
    539,586.72x = 221,804,832,611.06
  5. Step 5: Solve for x
    x = 221,804,832,611.06/539,586.72
  6. Step 6: Final answer
    x = 411,064.29

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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.