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Finding the Fourth Proportional to 1,334,784.64, 1,841,993.28 and 722,923.30

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Solution

The fourth proportional to 1,334,784.64, 1,841,993.28 and 722,923.30 is: 997,629.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334,784.64 : 1,841,993.28 = 722,923.30 : x
  2. Step 2: Convert to fraction form
    1,334,784.64/1,841,993.28 = 722,923.30/x
  3. Step 3: Cross multiply
    1,334,784.64x = 1,841,993.28 × 722,923.30
  4. Step 4: Simplify right side
    1,334,784.64x = 1,331,619,860,555.42
  5. Step 5: Solve for x
    x = 1,331,619,860,555.42/1,334,784.64
  6. Step 6: Final answer
    x = 997,629.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.