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Finding the Fourth Proportional to 559,620.56, 839,678.70 and 293,317.76

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Solution

The fourth proportional to 559,620.56, 839,678.70 and 293,317.76 is: 440,106.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,620.56 : 839,678.70 = 293,317.76 : x
  2. Step 2: Convert to fraction form
    559,620.56/839,678.70 = 293,317.76/x
  3. Step 3: Cross multiply
    559,620.56x = 839,678.70 × 293,317.76
  4. Step 4: Simplify right side
    559,620.56x = 246,292,675,403.71
  5. Step 5: Solve for x
    x = 246,292,675,403.71/559,620.56
  6. Step 6: Final answer
    x = 440,106.55

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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.