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Finding the Fourth Proportional to 404,879.47, 558,730.38 and 223,603.63

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Solution

The fourth proportional to 404,879.47, 558,730.38 and 223,603.63 is: 308,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,879.47 : 558,730.38 = 223,603.63 : x
  2. Step 2: Convert to fraction form
    404,879.47/558,730.38 = 223,603.63/x
  3. Step 3: Cross multiply
    404,879.47x = 558,730.38 × 223,603.63
  4. Step 4: Simplify right side
    404,879.47x = 124,934,141,159.28
  5. Step 5: Solve for x
    x = 124,934,141,159.28/404,879.47
  6. Step 6: Final answer
    x = 308,571.19

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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.