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Finding the Fourth Proportional to 707,222.80, 1,059,667.80 and 606,912.40

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Solution

The fourth proportional to 707,222.80, 1,059,667.80 and 606,912.40 is: 909,367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,222.80 : 1,059,667.80 = 606,912.40 : x
  2. Step 2: Convert to fraction form
    707,222.80/1,059,667.80 = 606,912.40/x
  3. Step 3: Cross multiply
    707,222.80x = 1,059,667.80 × 606,912.40
  4. Step 4: Simplify right side
    707,222.80x = 643,125,527,700.72
  5. Step 5: Solve for x
    x = 643,125,527,700.72/707,222.80
  6. Step 6: Final answer
    x = 909,367.64

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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.