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Finding the Fourth Proportional to 608,384.40, 912,272.04 and 187,605.60

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Solution

The fourth proportional to 608,384.40, 912,272.04 and 187,605.60 is: 281,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,384.40 : 912,272.04 = 187,605.60 : x
  2. Step 2: Convert to fraction form
    608,384.40/912,272.04 = 187,605.60/x
  3. Step 3: Cross multiply
    608,384.40x = 912,272.04 × 187,605.60
  4. Step 4: Simplify right side
    608,384.40x = 171,147,343,427.42
  5. Step 5: Solve for x
    x = 171,147,343,427.42/608,384.40
  6. Step 6: Final answer
    x = 281,314.48

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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.