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Finding the Fourth Proportional to 472,258.62, 651,717.39 and 257,398.86

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Solution

The fourth proportional to 472,258.62, 651,717.39 and 257,398.86 is: 355,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,258.62 : 651,717.39 = 257,398.86 : x
  2. Step 2: Convert to fraction form
    472,258.62/651,717.39 = 257,398.86/x
  3. Step 3: Cross multiply
    472,258.62x = 651,717.39 × 257,398.86
  4. Step 4: Simplify right side
    472,258.62x = 167,751,313,228.18
  5. Step 5: Solve for x
    x = 167,751,313,228.18/472,258.62
  6. Step 6: Final answer
    x = 355,210.70

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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.