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Finding the Fourth Proportional to 445,653.30, 668,897.55 and 235,442.10

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Solution

The fourth proportional to 445,653.30, 668,897.55 and 235,442.10 is: 353,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,653.30 : 668,897.55 = 235,442.10 : x
  2. Step 2: Convert to fraction form
    445,653.30/668,897.55 = 235,442.10/x
  3. Step 3: Cross multiply
    445,653.30x = 668,897.55 × 235,442.10
  4. Step 4: Simplify right side
    445,653.30x = 157,486,643,856.86
  5. Step 5: Solve for x
    x = 157,486,643,856.86/445,653.30
  6. Step 6: Final answer
    x = 353,383.77

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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.