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Finding the Fourth Proportional to 607,342.25, 838,133.73 and 335,405.21

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Solution

The fourth proportional to 607,342.25, 838,133.73 and 335,405.21 is: 462,859.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,342.25 : 838,133.73 = 335,405.21 : x
  2. Step 2: Convert to fraction form
    607,342.25/838,133.73 = 335,405.21/x
  3. Step 3: Cross multiply
    607,342.25x = 838,133.73 × 335,405.21
  4. Step 4: Simplify right side
    607,342.25x = 281,114,415,528.07
  5. Step 5: Solve for x
    x = 281,114,415,528.07/607,342.25
  6. Step 6: Final answer
    x = 462,859.97

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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.