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Finding the Fourth Proportional to 612,022.60, 918,033.90 and 606,117.70

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Solution

The fourth proportional to 612,022.60, 918,033.90 and 606,117.70 is: 909,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,022.60 : 918,033.90 = 606,117.70 : x
  2. Step 2: Convert to fraction form
    612,022.60/918,033.90 = 606,117.70/x
  3. Step 3: Cross multiply
    612,022.60x = 918,033.90 × 606,117.70
  4. Step 4: Simplify right side
    612,022.60x = 556,436,595,990.03
  5. Step 5: Solve for x
    x = 556,436,595,990.03/612,022.60
  6. Step 6: Final answer
    x = 909,176.55

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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.