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Finding the Fourth Proportional to 589,321.71, 813,362.58 and 347,664.24

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Solution

The fourth proportional to 589,321.71, 813,362.58 and 347,664.24 is: 479,834.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,321.71 : 813,362.58 = 347,664.24 : x
  2. Step 2: Convert to fraction form
    589,321.71/813,362.58 = 347,664.24/x
  3. Step 3: Cross multiply
    589,321.71x = 813,362.58 × 347,664.24
  4. Step 4: Simplify right side
    589,321.71x = 282,777,083,220.14
  5. Step 5: Solve for x
    x = 282,777,083,220.14/589,321.71
  6. Step 6: Final answer
    x = 479,834.83

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1.5x scale

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.