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Finding the Fourth Proportional to 562,062.13, 775,626.40 and 320,422.52

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Solution

The fourth proportional to 562,062.13, 775,626.40 and 320,422.52 is: 442,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,062.13 : 775,626.40 = 320,422.52 : x
  2. Step 2: Convert to fraction form
    562,062.13/775,626.40 = 320,422.52/x
  3. Step 3: Cross multiply
    562,062.13x = 775,626.40 × 320,422.52
  4. Step 4: Simplify right side
    562,062.13x = 248,528,165,666.53
  5. Step 5: Solve for x
    x = 248,528,165,666.53/562,062.13
  6. Step 6: Final answer
    x = 442,172.05

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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.