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Finding the Fourth Proportional to 562,109.36, 775,723.21 and 307,460.54

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Solution

The fourth proportional to 562,109.36, 775,723.21 and 307,460.54 is: 424,302.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,109.36 : 775,723.21 = 307,460.54 : x
  2. Step 2: Convert to fraction form
    562,109.36/775,723.21 = 307,460.54/x
  3. Step 3: Cross multiply
    562,109.36x = 775,723.21 × 307,460.54
  4. Step 4: Simplify right side
    562,109.36x = 238,504,278,207.79
  5. Step 5: Solve for x
    x = 238,504,278,207.79/562,109.36
  6. Step 6: Final answer
    x = 424,302.28

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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.