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Finding the Fourth Proportional to 515,055.84, 772,800.84 and 199,734.72

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Solution

The fourth proportional to 515,055.84, 772,800.84 and 199,734.72 is: 299,686.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,055.84 : 772,800.84 = 199,734.72 : x
  2. Step 2: Convert to fraction form
    515,055.84/772,800.84 = 199,734.72/x
  3. Step 3: Cross multiply
    515,055.84x = 772,800.84 × 199,734.72
  4. Step 4: Simplify right side
    515,055.84x = 154,355,159,393.17
  5. Step 5: Solve for x
    x = 154,355,159,393.17/515,055.84
  6. Step 6: Final answer
    x = 299,686.26

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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.