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Finding the Fourth Proportional to 615,694.37, 849,433.84 and 360,996.35

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Solution

The fourth proportional to 615,694.37, 849,433.84 and 360,996.35 is: 498,043.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,694.37 : 849,433.84 = 360,996.35 : x
  2. Step 2: Convert to fraction form
    615,694.37/849,433.84 = 360,996.35/x
  3. Step 3: Cross multiply
    615,694.37x = 849,433.84 × 360,996.35
  4. Step 4: Simplify right side
    615,694.37x = 306,642,510,656.82
  5. Step 5: Solve for x
    x = 306,642,510,656.82/615,694.37
  6. Step 6: Final answer
    x = 498,043.39

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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.