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Finding the Fourth Proportional to 429,783.03, 644,803.34 and 173,483.64

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Solution

The fourth proportional to 429,783.03, 644,803.34 and 173,483.64 is: 260,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,783.03 : 644,803.34 = 173,483.64 : x
  2. Step 2: Convert to fraction form
    429,783.03/644,803.34 = 173,483.64/x
  3. Step 3: Cross multiply
    429,783.03x = 644,803.34 × 173,483.64
  4. Step 4: Simplify right side
    429,783.03x = 111,862,829,639.94
  5. Step 5: Solve for x
    x = 111,862,829,639.94/429,783.03
  6. Step 6: Final answer
    x = 260,277.45

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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.