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Finding the Fourth Proportional to 292,092.10, 438,138.15 and 192,364.90

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Solution

The fourth proportional to 292,092.10, 438,138.15 and 192,364.90 is: 288,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,092.10 : 438,138.15 = 192,364.90 : x
  2. Step 2: Convert to fraction form
    292,092.10/438,138.15 = 192,364.90/x
  3. Step 3: Cross multiply
    292,092.10x = 438,138.15 × 192,364.90
  4. Step 4: Simplify right side
    292,092.10x = 84,282,401,410.94
  5. Step 5: Solve for x
    x = 84,282,401,410.94/292,092.10
  6. Step 6: Final answer
    x = 288,547.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.