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Finding the Fourth Proportional to 608,108.76, 912,261.12 and 187,384.44

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Solution

The fourth proportional to 608,108.76, 912,261.12 and 187,384.44 is: 281,106.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,108.76 : 912,261.12 = 187,384.44 : x
  2. Step 2: Convert to fraction form
    608,108.76/912,261.12 = 187,384.44/x
  3. Step 3: Cross multiply
    608,108.76x = 912,261.12 × 187,384.44
  4. Step 4: Simplify right side
    608,108.76x = 170,943,539,104.97
  5. Step 5: Solve for x
    x = 170,943,539,104.97/608,108.76
  6. Step 6: Final answer
    x = 281,106.85

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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.