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Finding the Fourth Proportional to 464,425.56, 640,914.60 and 260,521.80

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Solution

The fourth proportional to 464,425.56, 640,914.60 and 260,521.80 is: 359,524.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,425.56 : 640,914.60 = 260,521.80 : x
  2. Step 2: Convert to fraction form
    464,425.56/640,914.60 = 260,521.80/x
  3. Step 3: Cross multiply
    464,425.56x = 640,914.60 × 260,521.80
  4. Step 4: Simplify right side
    464,425.56x = 166,972,225,238.28
  5. Step 5: Solve for x
    x = 166,972,225,238.28/464,425.56
  6. Step 6: Final answer
    x = 359,524.19

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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.