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Finding the Fourth Proportional to 464,073.68, 640,460.85 and 260,121.35

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Solution

The fourth proportional to 464,073.68, 640,460.85 and 260,121.35 is: 358,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,073.68 : 640,460.85 = 260,121.35 : x
  2. Step 2: Convert to fraction form
    464,073.68/640,460.85 = 260,121.35/x
  3. Step 3: Cross multiply
    464,073.68x = 640,460.85 × 260,121.35
  4. Step 4: Simplify right side
    464,073.68x = 166,597,540,924.15
  5. Step 5: Solve for x
    x = 166,597,540,924.15/464,073.68
  6. Step 6: Final answer
    x = 358,989.42

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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.