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Finding the Fourth Proportional to 282,114.69, 389,426.67 and 191,511.15

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Solution

The fourth proportional to 282,114.69, 389,426.67 and 191,511.15 is: 264,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,114.69 : 389,426.67 = 191,511.15 : x
  2. Step 2: Convert to fraction form
    282,114.69/389,426.67 = 191,511.15/x
  3. Step 3: Cross multiply
    282,114.69x = 389,426.67 × 191,511.15
  4. Step 4: Simplify right side
    282,114.69x = 74,579,549,412.37
  5. Step 5: Solve for x
    x = 74,579,549,412.37/282,114.69
  6. Step 6: Final answer
    x = 264,358.97

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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.