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Finding the Fourth Proportional to 357,756.80, 535,749.44 and 262,761.71

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Solution

The fourth proportional to 357,756.80, 535,749.44 and 262,761.71 is: 393,492.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,756.80 : 535,749.44 = 262,761.71 : x
  2. Step 2: Convert to fraction form
    357,756.80/535,749.44 = 262,761.71/x
  3. Step 3: Cross multiply
    357,756.80x = 535,749.44 × 262,761.71
  4. Step 4: Simplify right side
    357,756.80x = 140,774,438,985.94
  5. Step 5: Solve for x
    x = 140,774,438,985.94/357,756.80
  6. Step 6: Final answer
    x = 393,492.00

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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.