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Finding the Fourth Proportional to 613,589.06, 920,446.55 and 234,828.40

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Solution

The fourth proportional to 613,589.06, 920,446.55 and 234,828.40 is: 352,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,589.06 : 920,446.55 = 234,828.40 : x
  2. Step 2: Convert to fraction form
    613,589.06/920,446.55 = 234,828.40/x
  3. Step 3: Cross multiply
    613,589.06x = 920,446.55 × 234,828.40
  4. Step 4: Simplify right side
    613,589.06x = 216,146,988,907.98
  5. Step 5: Solve for x
    x = 216,146,988,907.98/613,589.06
  6. Step 6: Final answer
    x = 352,266.70

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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.