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Finding the Fourth Proportional to 377,100.18, 519,888.87 and 256,031.28

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Solution

The fourth proportional to 377,100.18, 519,888.87 and 256,031.28 is: 352,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,100.18 : 519,888.87 = 256,031.28 : x
  2. Step 2: Convert to fraction form
    377,100.18/519,888.87 = 256,031.28/x
  3. Step 3: Cross multiply
    377,100.18x = 519,888.87 × 256,031.28
  4. Step 4: Simplify right side
    377,100.18x = 133,107,812,843.85
  5. Step 5: Solve for x
    x = 133,107,812,843.85/377,100.18
  6. Step 6: Final answer
    x = 352,977.33

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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.