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Finding the Fourth Proportional to 806,698.80, 1,210,048.20 and 333,723.60

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Solution

The fourth proportional to 806,698.80, 1,210,048.20 and 333,723.60 is: 500,585.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,698.80 : 1,210,048.20 = 333,723.60 : x
  2. Step 2: Convert to fraction form
    806,698.80/1,210,048.20 = 333,723.60/x
  3. Step 3: Cross multiply
    806,698.80x = 1,210,048.20 × 333,723.60
  4. Step 4: Simplify right side
    806,698.80x = 403,821,641,477.52
  5. Step 5: Solve for x
    x = 403,821,641,477.52/806,698.80
  6. Step 6: Final answer
    x = 500,585.40

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Similar ratio
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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.