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Finding the Fourth Proportional to 586,763.14, 808,938.03 and 501,636.49

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Solution

The fourth proportional to 586,763.14, 808,938.03 and 501,636.49 is: 691,578.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,763.14 : 808,938.03 = 501,636.49 : x
  2. Step 2: Convert to fraction form
    586,763.14/808,938.03 = 501,636.49/x
  3. Step 3: Cross multiply
    586,763.14x = 808,938.03 × 501,636.49
  4. Step 4: Simplify right side
    586,763.14x = 405,792,836,889.02
  5. Step 5: Solve for x
    x = 405,792,836,889.02/586,763.14
  6. Step 6: Final answer
    x = 691,578.61

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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.