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Finding the Fourth Proportional to 429,880.37, 593,300.30 and 309,420.41

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Solution

The fourth proportional to 429,880.37, 593,300.30 and 309,420.41 is: 427,047.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,880.37 : 593,300.30 = 309,420.41 : x
  2. Step 2: Convert to fraction form
    429,880.37/593,300.30 = 309,420.41/x
  3. Step 3: Cross multiply
    429,880.37x = 593,300.30 × 309,420.41
  4. Step 4: Simplify right side
    429,880.37x = 183,579,217,565.52
  5. Step 5: Solve for x
    x = 183,579,217,565.52/429,880.37
  6. Step 6: Final answer
    x = 427,047.23

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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.