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Finding the Fourth Proportional to 543,706.72, 816,058.26 and 291,272.20

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Solution

The fourth proportional to 543,706.72, 816,058.26 and 291,272.20 is: 437,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,706.72 : 816,058.26 = 291,272.20 : x
  2. Step 2: Convert to fraction form
    543,706.72/816,058.26 = 291,272.20/x
  3. Step 3: Cross multiply
    543,706.72x = 816,058.26 × 291,272.20
  4. Step 4: Simplify right side
    543,706.72x = 237,695,084,718.37
  5. Step 5: Solve for x
    x = 237,695,084,718.37/543,706.72
  6. Step 6: Final answer
    x = 437,175.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.