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Finding the Fourth Proportional to 438,210, 604,729.85 and 237,006

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Solution

The fourth proportional to 438,210, 604,729.85 and 237,006 is: 327,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,210 : 604,729.85 = 237,006 : x
  2. Step 2: Convert to fraction form
    438,210/604,729.85 = 237,006/x
  3. Step 3: Cross multiply
    438,210x = 604,729.85 × 237,006
  4. Step 4: Simplify right side
    438,210x = 143,324,601,644.07
  5. Step 5: Solve for x
    x = 143,324,601,644.07/438,210
  6. Step 6: Final answer
    x = 327,068.30

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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.