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Finding the Fourth Proportional to 339,264.80, 508,897.20 and 191,808.80

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Solution

The fourth proportional to 339,264.80, 508,897.20 and 191,808.80 is: 287,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,264.80 : 508,897.20 = 191,808.80 : x
  2. Step 2: Convert to fraction form
    339,264.80/508,897.20 = 191,808.80/x
  3. Step 3: Cross multiply
    339,264.80x = 508,897.20 × 191,808.80
  4. Step 4: Simplify right side
    339,264.80x = 97,610,961,255.36
  5. Step 5: Solve for x
    x = 97,610,961,255.36/339,264.80
  6. Step 6: Final answer
    x = 287,713.20

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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.