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Finding the Fourth Proportional to 404,818.70, 607,616.85 and 205,364.30

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Solution

The fourth proportional to 404,818.70, 607,616.85 and 205,364.30 is: 308,243.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,818.70 : 607,616.85 = 205,364.30 : x
  2. Step 2: Convert to fraction form
    404,818.70/607,616.85 = 205,364.30/x
  3. Step 3: Cross multiply
    404,818.70x = 607,616.85 × 205,364.30
  4. Step 4: Simplify right side
    404,818.70x = 124,782,809,068.46
  5. Step 5: Solve for x
    x = 124,782,809,068.46/404,818.70
  6. Step 6: Final answer
    x = 308,243.69

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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.