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Finding the Fourth Proportional to 697,716.40, 1,045,019.40 and 573,300.40

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Solution

The fourth proportional to 697,716.40, 1,045,019.40 and 573,300.40 is: 858,672.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,716.40 : 1,045,019.40 = 573,300.40 : x
  2. Step 2: Convert to fraction form
    697,716.40/1,045,019.40 = 573,300.40/x
  3. Step 3: Cross multiply
    697,716.40x = 1,045,019.40 × 573,300.40
  4. Step 4: Simplify right side
    697,716.40x = 599,110,040,027.76
  5. Step 5: Solve for x
    x = 599,110,040,027.76/697,716.40
  6. Step 6: Final answer
    x = 858,672.72

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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.