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Finding the Fourth Proportional to 665,352, 918,192.24 and 363,546

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Solution

The fourth proportional to 665,352, 918,192.24 and 363,546 is: 501,697.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,352 : 918,192.24 = 363,546 : x
  2. Step 2: Convert to fraction form
    665,352/918,192.24 = 363,546/x
  3. Step 3: Cross multiply
    665,352x = 918,192.24 × 363,546
  4. Step 4: Simplify right side
    665,352x = 333,805,116,083.04
  5. Step 5: Solve for x
    x = 333,805,116,083.04/665,352
  6. Step 6: Final answer
    x = 501,697.02

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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.