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Finding the Fourth Proportional to 404,705.09, 558,497.54 and 223,417.11

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Solution

The fourth proportional to 404,705.09, 558,497.54 and 223,417.11 is: 308,318.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,705.09 : 558,497.54 = 223,417.11 : x
  2. Step 2: Convert to fraction form
    404,705.09/558,497.54 = 223,417.11/x
  3. Step 3: Cross multiply
    404,705.09x = 558,497.54 × 223,417.11
  4. Step 4: Simplify right side
    404,705.09x = 124,777,905,211.82
  5. Step 5: Solve for x
    x = 124,777,905,211.82/404,705.09
  6. Step 6: Final answer
    x = 308,318.11

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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.