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Finding the Fourth Proportional to 469,925.55, 648,498.06 and 255,065.67

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Solution

The fourth proportional to 469,925.55, 648,498.06 and 255,065.67 is: 351,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,925.55 : 648,498.06 = 255,065.67 : x
  2. Step 2: Convert to fraction form
    469,925.55/648,498.06 = 255,065.67/x
  3. Step 3: Cross multiply
    469,925.55x = 648,498.06 × 255,065.67
  4. Step 4: Simplify right side
    469,925.55x = 165,409,592,167.60
  5. Step 5: Solve for x
    x = 165,409,592,167.60/469,925.55
  6. Step 6: Final answer
    x = 351,991.06

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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.