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Finding the Fourth Proportional to 345,031.94, 476,194.97 and 207,220.16

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Solution

The fourth proportional to 345,031.94, 476,194.97 and 207,220.16 is: 285,994.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,031.94 : 476,194.97 = 207,220.16 : x
  2. Step 2: Convert to fraction form
    345,031.94/476,194.97 = 207,220.16/x
  3. Step 3: Cross multiply
    345,031.94x = 476,194.97 × 207,220.16
  4. Step 4: Simplify right side
    345,031.94x = 98,677,197,874.60
  5. Step 5: Solve for x
    x = 98,677,197,874.60/345,031.94
  6. Step 6: Final answer
    x = 285,994.39

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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.