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Finding the Fourth Proportional to 562,165.20, 775,806.48 and 307,510.56

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Solution

The fourth proportional to 562,165.20, 775,806.48 and 307,510.56 is: 424,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,165.20 : 775,806.48 = 307,510.56 : x
  2. Step 2: Convert to fraction form
    562,165.20/775,806.48 = 307,510.56/x
  3. Step 3: Cross multiply
    562,165.20x = 775,806.48 × 307,510.56
  4. Step 4: Simplify right side
    562,165.20x = 238,568,685,116.43
  5. Step 5: Solve for x
    x = 238,568,685,116.43/562,165.20
  6. Step 6: Final answer
    x = 424,374.69

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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.