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Finding the Fourth Proportional to 402,045.83, 605,958.60 and 346,555.67

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Solution

The fourth proportional to 402,045.83, 605,958.60 and 346,555.67 is: 522,324.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,045.83 : 605,958.60 = 346,555.67 : x
  2. Step 2: Convert to fraction form
    402,045.83/605,958.60 = 346,555.67/x
  3. Step 3: Cross multiply
    402,045.83x = 605,958.60 × 346,555.67
  4. Step 4: Simplify right side
    402,045.83x = 209,998,386,885.05
  5. Step 5: Solve for x
    x = 209,998,386,885.05/402,045.83
  6. Step 6: Final answer
    x = 522,324.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.