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Finding the Fourth Proportional to 670,896.76, 1,006,811.70 and 433,651

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Solution

The fourth proportional to 670,896.76, 1,006,811.70 and 433,651 is: 650,778.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,896.76 : 1,006,811.70 = 433,651 : x
  2. Step 2: Convert to fraction form
    670,896.76/1,006,811.70 = 433,651/x
  3. Step 3: Cross multiply
    670,896.76x = 1,006,811.70 × 433,651
  4. Step 4: Simplify right side
    670,896.76x = 436,604,900,516.70
  5. Step 5: Solve for x
    x = 436,604,900,516.70/670,896.76
  6. Step 6: Final answer
    x = 650,778.07

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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.