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Finding the Fourth Proportional to 519,710.20, 778,982.10 and 295,178.20

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Solution

The fourth proportional to 519,710.20, 778,982.10 and 295,178.20 is: 442,436.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,710.20 : 778,982.10 = 295,178.20 : x
  2. Step 2: Convert to fraction form
    519,710.20/778,982.10 = 295,178.20/x
  3. Step 3: Cross multiply
    519,710.20x = 778,982.10 × 295,178.20
  4. Step 4: Simplify right side
    519,710.20x = 229,938,534,110.22
  5. Step 5: Solve for x
    x = 229,938,534,110.22/519,710.20
  6. Step 6: Final answer
    x = 442,436.06

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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.