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Finding the Fourth Proportional to 369,253.69, 509,570.39 and 199,487.81

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Solution

The fourth proportional to 369,253.69, 509,570.39 and 199,487.81 is: 275,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,253.69 : 509,570.39 = 199,487.81 : x
  2. Step 2: Convert to fraction form
    369,253.69/509,570.39 = 199,487.81/x
  3. Step 3: Cross multiply
    369,253.69x = 509,570.39 × 199,487.81
  4. Step 4: Simplify right side
    369,253.69x = 101,653,082,914.59
  5. Step 5: Solve for x
    x = 101,653,082,914.59/369,253.69
  6. Step 6: Final answer
    x = 275,293.35

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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.