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Finding the Fourth Proportional to 819,339, 1,130,755.17 and 451,888.02

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Solution

The fourth proportional to 819,339, 1,130,755.17 and 451,888.02 is: 623,642.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,339 : 1,130,755.17 = 451,888.02 : x
  2. Step 2: Convert to fraction form
    819,339/1,130,755.17 = 451,888.02/x
  3. Step 3: Cross multiply
    819,339x = 1,130,755.17 × 451,888.02
  4. Step 4: Simplify right side
    819,339x = 510,974,714,876.06
  5. Step 5: Solve for x
    x = 510,974,714,876.06/819,339
  6. Step 6: Final answer
    x = 623,642.61

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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.