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Finding the Fourth Proportional to 607,139.74, 838,596.81 and 454,858.93

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Solution

The fourth proportional to 607,139.74, 838,596.81 and 454,858.93 is: 628,262.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,139.74 : 838,596.81 = 454,858.93 : x
  2. Step 2: Convert to fraction form
    607,139.74/838,596.81 = 454,858.93/x
  3. Step 3: Cross multiply
    607,139.74x = 838,596.81 × 454,858.93
  4. Step 4: Simplify right side
    607,139.74x = 381,443,247,698.01
  5. Step 5: Solve for x
    x = 381,443,247,698.01/607,139.74
  6. Step 6: Final answer
    x = 628,262.69

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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.