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Finding the Fourth Proportional to 889,728,298.40, 1,334,592,447.60 and 889,728,298.40

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Solution

The fourth proportional to 889,728,298.40, 1,334,592,447.60 and 889,728,298.40 is: 1,334,592,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,728,298.40 : 1,334,592,447.60 = 889,728,298.40 : x
  2. Step 2: Convert to fraction form
    889,728,298.40/1,334,592,447.60 = 889,728,298.40/x
  3. Step 3: Cross multiply
    889,728,298.40x = 1,334,592,447.60 × 889,728,298.40
  4. Step 4: Simplify right side
    889,728,298.40x = 1,187,424,667,460,638,976
  5. Step 5: Solve for x
    x = 1,187,424,667,460,638,976/889,728,298.40
  6. Step 6: Final answer
    x = 1,334,592,447.60

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1.5x scale

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.