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Finding the Fourth Proportional to 904,216.80, 1,355,158.80 and 692,806.80

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Solution

The fourth proportional to 904,216.80, 1,355,158.80 and 692,806.80 is: 1,038,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,216.80 : 1,355,158.80 = 692,806.80 : x
  2. Step 2: Convert to fraction form
    904,216.80/1,355,158.80 = 692,806.80/x
  3. Step 3: Cross multiply
    904,216.80x = 1,355,158.80 × 692,806.80
  4. Step 4: Simplify right side
    904,216.80x = 938,863,231,719.84
  5. Step 5: Solve for x
    x = 938,863,231,719.84/904,216.80
  6. Step 6: Final answer
    x = 1,038,316.51

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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.