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Finding the Fourth Proportional to 571,228.15, 856,669.51 and 171,762.88

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Solution

The fourth proportional to 571,228.15, 856,669.51 and 171,762.88 is: 257,592.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,228.15 : 856,669.51 = 171,762.88 : x
  2. Step 2: Convert to fraction form
    571,228.15/856,669.51 = 171,762.88/x
  3. Step 3: Cross multiply
    571,228.15x = 856,669.51 × 171,762.88
  4. Step 4: Simplify right side
    571,228.15x = 147,144,022,245.79
  5. Step 5: Solve for x
    x = 147,144,022,245.79/571,228.15
  6. Step 6: Final answer
    x = 257,592.39

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1.5x scale

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.