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Finding the Fourth Proportional to 589,361.91, 813,417.27 and 347,703.87

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Solution

The fourth proportional to 589,361.91, 813,417.27 and 347,703.87 is: 479,889.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,361.91 : 813,417.27 = 347,703.87 : x
  2. Step 2: Convert to fraction form
    589,361.91/813,417.27 = 347,703.87/x
  3. Step 3: Cross multiply
    589,361.91x = 813,417.27 × 347,703.87
  4. Step 4: Simplify right side
    589,361.91x = 282,828,332,703.84
  5. Step 5: Solve for x
    x = 282,828,332,703.84/589,361.91
  6. Step 6: Final answer
    x = 479,889.06

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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.