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Finding the Fourth Proportional to 581,897.33, 872,809.73 and 278,506.97

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Solution

The fourth proportional to 581,897.33, 872,809.73 and 278,506.97 is: 417,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,897.33 : 872,809.73 = 278,506.97 : x
  2. Step 2: Convert to fraction form
    581,897.33/872,809.73 = 278,506.97/x
  3. Step 3: Cross multiply
    581,897.33x = 872,809.73 × 278,506.97
  4. Step 4: Simplify right side
    581,897.33x = 243,083,593,288.82
  5. Step 5: Solve for x
    x = 243,083,593,288.82/581,897.33
  6. Step 6: Final answer
    x = 417,743.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.