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Finding the Fourth Proportional to 594,889.98, 820,643.90 and 379,803.93

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Solution

The fourth proportional to 594,889.98, 820,643.90 and 379,803.93 is: 523,935.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,889.98 : 820,643.90 = 379,803.93 : x
  2. Step 2: Convert to fraction form
    594,889.98/820,643.90 = 379,803.93/x
  3. Step 3: Cross multiply
    594,889.98x = 820,643.90 × 379,803.93
  4. Step 4: Simplify right side
    594,889.98x = 311,683,778,350.53
  5. Step 5: Solve for x
    x = 311,683,778,350.53/594,889.98
  6. Step 6: Final answer
    x = 523,935.16

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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.