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Finding the Fourth Proportional to 627,995.36, 866,639.40 and 341,518.16

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Solution

The fourth proportional to 627,995.36, 866,639.40 and 341,518.16 is: 471,298.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,995.36 : 866,639.40 = 341,518.16 : x
  2. Step 2: Convert to fraction form
    627,995.36/866,639.40 = 341,518.16/x
  3. Step 3: Cross multiply
    627,995.36x = 866,639.40 × 341,518.16
  4. Step 4: Simplify right side
    627,995.36x = 295,973,093,271.50
  5. Step 5: Solve for x
    x = 295,973,093,271.50/627,995.36
  6. Step 6: Final answer
    x = 471,298.22

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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.