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Finding the Fourth Proportional to 342,920.48, 473,461.41 and 214,055.21

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Solution

The fourth proportional to 342,920.48, 473,461.41 and 214,055.21 is: 295,540.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,920.48 : 473,461.41 = 214,055.21 : x
  2. Step 2: Convert to fraction form
    342,920.48/473,461.41 = 214,055.21/x
  3. Step 3: Cross multiply
    342,920.48x = 473,461.41 × 214,055.21
  4. Step 4: Simplify right side
    342,920.48x = 101,346,879,177.14
  5. Step 5: Solve for x
    x = 101,346,879,177.14/342,920.48
  6. Step 6: Final answer
    x = 295,540.47

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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.