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Finding the Fourth Proportional to 335,239.86, 499,701.72 and 308,335.67

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Solution

The fourth proportional to 335,239.86, 499,701.72 and 308,335.67 is: 459,598.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,239.86 : 499,701.72 = 308,335.67 : x
  2. Step 2: Convert to fraction form
    335,239.86/499,701.72 = 308,335.67/x
  3. Step 3: Cross multiply
    335,239.86x = 499,701.72 × 308,335.67
  4. Step 4: Simplify right side
    335,239.86x = 154,075,862,137.84
  5. Step 5: Solve for x
    x = 154,075,862,137.84/335,239.86
  6. Step 6: Final answer
    x = 459,598.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.