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Finding the Fourth Proportional to 624,428.24, 936,642.40 and 151,113.64

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Solution

The fourth proportional to 624,428.24, 936,642.40 and 151,113.64 is: 226,670.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,428.24 : 936,642.40 = 151,113.64 : x
  2. Step 2: Convert to fraction form
    624,428.24/936,642.40 = 151,113.64/x
  3. Step 3: Cross multiply
    624,428.24x = 936,642.40 × 151,113.64
  4. Step 4: Simplify right side
    624,428.24x = 141,539,442,442.34
  5. Step 5: Solve for x
    x = 141,539,442,442.34/624,428.24
  6. Step 6: Final answer
    x = 226,670.47

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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.