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Finding the Fourth Proportional to 492,774.72, 680,030.15 and 266,420.22

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Solution

The fourth proportional to 492,774.72, 680,030.15 and 266,420.22 is: 367,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,774.72 : 680,030.15 = 266,420.22 : x
  2. Step 2: Convert to fraction form
    492,774.72/680,030.15 = 266,420.22/x
  3. Step 3: Cross multiply
    492,774.72x = 680,030.15 × 266,420.22
  4. Step 4: Simplify right side
    492,774.72x = 181,173,780,837.53
  5. Step 5: Solve for x
    x = 181,173,780,837.53/492,774.72
  6. Step 6: Final answer
    x = 367,660.46

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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.