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Finding the Fourth Proportional to 638,095.52, 880,606.49 and 366,161.21

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Solution

The fourth proportional to 638,095.52, 880,606.49 and 366,161.21 is: 505,322.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,095.52 : 880,606.49 = 366,161.21 : x
  2. Step 2: Convert to fraction form
    638,095.52/880,606.49 = 366,161.21/x
  3. Step 3: Cross multiply
    638,095.52x = 880,606.49 × 366,161.21
  4. Step 4: Simplify right side
    638,095.52x = 322,443,934,980.69
  5. Step 5: Solve for x
    x = 322,443,934,980.69/638,095.52
  6. Step 6: Final answer
    x = 505,322.36

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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.