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Finding the Fourth Proportional to 464,384.37, 640,857.66 and 260,480.55

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Solution

The fourth proportional to 464,384.37, 640,857.66 and 260,480.55 is: 359,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,384.37 : 640,857.66 = 260,480.55 : x
  2. Step 2: Convert to fraction form
    464,384.37/640,857.66 = 260,480.55/x
  3. Step 3: Cross multiply
    464,384.37x = 640,857.66 × 260,480.55
  4. Step 4: Simplify right side
    464,384.37x = 166,930,955,748.51
  5. Step 5: Solve for x
    x = 166,930,955,748.51/464,384.37
  6. Step 6: Final answer
    x = 359,467.21

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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.