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Finding the Fourth Proportional to 622,643.10, 933,964.65 and 410,066.70

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Solution

The fourth proportional to 622,643.10, 933,964.65 and 410,066.70 is: 615,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,643.10 : 933,964.65 = 410,066.70 : x
  2. Step 2: Convert to fraction form
    622,643.10/933,964.65 = 410,066.70/x
  3. Step 3: Cross multiply
    622,643.10x = 933,964.65 × 410,066.70
  4. Step 4: Simplify right side
    622,643.10x = 382,987,801,942.16
  5. Step 5: Solve for x
    x = 382,987,801,942.16/622,643.10
  6. Step 6: Final answer
    x = 615,100.05

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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.