Home / 806,563.89-1,209,845.85-245,598.39

Finding the Fourth Proportional to 806,563.89, 1,209,845.85 and 245,598.39

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Solution

The fourth proportional to 806,563.89, 1,209,845.85 and 245,598.39 is: 368,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,563.89 : 1,209,845.85 = 245,598.39 : x
  2. Step 2: Convert to fraction form
    806,563.89/1,209,845.85 = 245,598.39/x
  3. Step 3: Cross multiply
    806,563.89x = 1,209,845.85 × 245,598.39
  4. Step 4: Simplify right side
    806,563.89x = 297,136,192,908.18
  5. Step 5: Solve for x
    x = 297,136,192,908.18/806,563.89
  6. Step 6: Final answer
    x = 368,397.59

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Double scale
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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.