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Finding the Fourth Proportional to 342,064.81, 472,217.76 and 214,810.57

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Solution

The fourth proportional to 342,064.81, 472,217.76 and 214,810.57 is: 296,544.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,064.81 : 472,217.76 = 214,810.57 : x
  2. Step 2: Convert to fraction form
    342,064.81/472,217.76 = 214,810.57/x
  3. Step 3: Cross multiply
    342,064.81x = 472,217.76 × 214,810.57
  4. Step 4: Simplify right side
    342,064.81x = 101,437,366,189.72
  5. Step 5: Solve for x
    x = 101,437,366,189.72/342,064.81
  6. Step 6: Final answer
    x = 296,544.29

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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.