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Finding the Fourth Proportional to 625,810.57, 863,635.58 and 353,919.13

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Solution

The fourth proportional to 625,810.57, 863,635.58 and 353,919.13 is: 488,418.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,810.57 : 863,635.58 = 353,919.13 : x
  2. Step 2: Convert to fraction form
    625,810.57/863,635.58 = 353,919.13/x
  3. Step 3: Cross multiply
    625,810.57x = 863,635.58 × 353,919.13
  4. Step 4: Simplify right side
    625,810.57x = 305,657,153,110.65
  5. Step 5: Solve for x
    x = 305,657,153,110.65/625,810.57
  6. Step 6: Final answer
    x = 488,418.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.