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Finding the Fourth Proportional to 571,005.99, 856,509.61 and 171,646.72

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Solution

The fourth proportional to 571,005.99, 856,509.61 and 171,646.72 is: 257,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,005.99 : 856,509.61 = 171,646.72 : x
  2. Step 2: Convert to fraction form
    571,005.99/856,509.61 = 171,646.72/x
  3. Step 3: Cross multiply
    571,005.99x = 856,509.61 × 171,646.72
  4. Step 4: Simplify right side
    571,005.99x = 147,017,065,204.98
  5. Step 5: Solve for x
    x = 147,017,065,204.98/571,005.99
  6. Step 6: Final answer
    x = 257,470.27

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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.