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Finding the Fourth Proportional to 610,230.04, 915,304 and 210,876.28

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Solution

The fourth proportional to 610,230.04, 915,304 and 210,876.28 is: 316,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,230.04 : 915,304 = 210,876.28 : x
  2. Step 2: Convert to fraction form
    610,230.04/915,304 = 210,876.28/x
  3. Step 3: Cross multiply
    610,230.04x = 915,304 × 210,876.28
  4. Step 4: Simplify right side
    610,230.04x = 193,015,902,589.12
  5. Step 5: Solve for x
    x = 193,015,902,589.12/610,230.04
  6. Step 6: Final answer
    x = 316,300.23

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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.