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Finding the Fourth Proportional to 492,442.54, 679,570.88 and 266,088.04

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Solution

The fourth proportional to 492,442.54, 679,570.88 and 266,088.04 is: 367,201.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,442.54 : 679,570.88 = 266,088.04 : x
  2. Step 2: Convert to fraction form
    492,442.54/679,570.88 = 266,088.04/x
  3. Step 3: Cross multiply
    492,442.54x = 679,570.88 × 266,088.04
  4. Step 4: Simplify right side
    492,442.54x = 180,825,683,500.28
  5. Step 5: Solve for x
    x = 180,825,683,500.28/492,442.54
  6. Step 6: Final answer
    x = 367,201.59

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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.