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Finding the Fourth Proportional to 404,762.16, 558,605.20 and 223,492.08

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Solution

The fourth proportional to 404,762.16, 558,605.20 and 223,492.08 is: 308,437.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,762.16 : 558,605.20 = 223,492.08 : x
  2. Step 2: Convert to fraction form
    404,762.16/558,605.20 = 223,492.08/x
  3. Step 3: Cross multiply
    404,762.16x = 558,605.20 × 223,492.08
  4. Step 4: Simplify right side
    404,762.16x = 124,843,838,046.82
  5. Step 5: Solve for x
    x = 124,843,838,046.82/404,762.16
  6. Step 6: Final answer
    x = 308,437.52

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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.