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Finding the Fourth Proportional to 581,726.80, 802,925.48 and 355,561.84

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Solution

The fourth proportional to 581,726.80, 802,925.48 and 355,561.84 is: 490,762.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,726.80 : 802,925.48 = 355,561.84 : x
  2. Step 2: Convert to fraction form
    581,726.80/802,925.48 = 355,561.84/x
  3. Step 3: Cross multiply
    581,726.80x = 802,925.48 × 355,561.84
  4. Step 4: Simplify right side
    581,726.80x = 285,489,661,051.68
  5. Step 5: Solve for x
    x = 285,489,661,051.68/581,726.80
  6. Step 6: Final answer
    x = 490,762.44

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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.