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Finding the Fourth Proportional to 982,243, 1,355,291.22 and 574,264.83

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Solution

The fourth proportional to 982,243, 1,355,291.22 and 574,264.83 is: 792,366.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,243 : 1,355,291.22 = 574,264.83 : x
  2. Step 2: Convert to fraction form
    982,243/1,355,291.22 = 574,264.83/x
  3. Step 3: Cross multiply
    982,243x = 1,355,291.22 × 574,264.83
  4. Step 4: Simplify right side
    982,243x = 778,296,082,053.79
  5. Step 5: Solve for x
    x = 778,296,082,053.79/982,243
  6. Step 6: Final answer
    x = 792,366.13

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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.