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Finding the Fourth Proportional to 418,840.83, 623,524.06 and 416,349.72

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Solution

The fourth proportional to 418,840.83, 623,524.06 and 416,349.72 is: 619,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,840.83 : 623,524.06 = 416,349.72 : x
  2. Step 2: Convert to fraction form
    418,840.83/623,524.06 = 416,349.72/x
  3. Step 3: Cross multiply
    418,840.83x = 623,524.06 × 416,349.72
  4. Step 4: Simplify right side
    418,840.83x = 259,604,067,794.26
  5. Step 5: Solve for x
    x = 259,604,067,794.26/418,840.83
  6. Step 6: Final answer
    x = 619,815.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.