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Finding the Fourth Proportional to 589,688.40, 883,220.40 and 484,712.40

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Solution

The fourth proportional to 589,688.40, 883,220.40 and 484,712.40 is: 725,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,688.40 : 883,220.40 = 484,712.40 : x
  2. Step 2: Convert to fraction form
    589,688.40/883,220.40 = 484,712.40/x
  3. Step 3: Cross multiply
    589,688.40x = 883,220.40 × 484,712.40
  4. Step 4: Simplify right side
    589,688.40x = 428,107,879,812.96
  5. Step 5: Solve for x
    x = 428,107,879,812.96/589,688.40
  6. Step 6: Final answer
    x = 725,990.00

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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.