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Finding the Fourth Proportional to 806,859.09, 1,210,287.42 and 245,893.59

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Solution

The fourth proportional to 806,859.09, 1,210,287.42 and 245,893.59 is: 368,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,859.09 : 1,210,287.42 = 245,893.59 : x
  2. Step 2: Convert to fraction form
    806,859.09/1,210,287.42 = 245,893.59/x
  3. Step 3: Cross multiply
    806,859.09x = 1,210,287.42 × 245,893.59
  4. Step 4: Simplify right side
    806,859.09x = 297,601,918,635.64
  5. Step 5: Solve for x
    x = 297,601,918,635.64/806,859.09
  6. Step 6: Final answer
    x = 368,840.01

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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.