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Finding the Fourth Proportional to 493,346.34, 680,816.61 and 266,991.84

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Solution

The fourth proportional to 493,346.34, 680,816.61 and 266,991.84 is: 368,448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,346.34 : 680,816.61 = 266,991.84 : x
  2. Step 2: Convert to fraction form
    493,346.34/680,816.61 = 266,991.84/x
  3. Step 3: Cross multiply
    493,346.34x = 680,816.61 × 266,991.84
  4. Step 4: Simplify right side
    493,346.34x = 181,772,479,406.46
  5. Step 5: Solve for x
    x = 181,772,479,406.46/493,346.34
  6. Step 6: Final answer
    x = 368,448.01

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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.