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Finding the Fourth Proportional to 889,496.40, 1,334,417.40 and 384,056.40

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Solution

The fourth proportional to 889,496.40, 1,334,417.40 and 384,056.40 is: 576,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,496.40 : 1,334,417.40 = 384,056.40 : x
  2. Step 2: Convert to fraction form
    889,496.40/1,334,417.40 = 384,056.40/x
  3. Step 3: Cross multiply
    889,496.40x = 1,334,417.40 × 384,056.40
  4. Step 4: Simplify right side
    889,496.40x = 512,491,542,741.36
  5. Step 5: Solve for x
    x = 512,491,542,741.36/889,496.40
  6. Step 6: Final answer
    x = 576,159.21

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.