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Finding the Fourth Proportional to 342,368.36, 472,493.22 and 191,513.96

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Solution

The fourth proportional to 342,368.36, 472,493.22 and 191,513.96 is: 264,303.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,368.36 : 472,493.22 = 191,513.96 : x
  2. Step 2: Convert to fraction form
    342,368.36/472,493.22 = 191,513.96/x
  3. Step 3: Cross multiply
    342,368.36x = 472,493.22 × 191,513.96
  4. Step 4: Simplify right side
    342,368.36x = 90,489,047,635.35
  5. Step 5: Solve for x
    x = 90,489,047,635.35/342,368.36
  6. Step 6: Final answer
    x = 264,303.18

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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.