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Finding the Fourth Proportional to 531,893.34, 734,015.19 and 290,175.18

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Solution

The fourth proportional to 531,893.34, 734,015.19 and 290,175.18 is: 400,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,893.34 : 734,015.19 = 290,175.18 : x
  2. Step 2: Convert to fraction form
    531,893.34/734,015.19 = 290,175.18/x
  3. Step 3: Cross multiply
    531,893.34x = 734,015.19 × 290,175.18
  4. Step 4: Simplify right side
    531,893.34x = 212,992,989,880.98
  5. Step 5: Solve for x
    x = 212,992,989,880.98/531,893.34
  6. Step 6: Final answer
    x = 400,443.05

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1.5x scale

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.