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Finding the Fourth Proportional to 607,939.90, 838,930.94 and 335,993.74

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Solution

The fourth proportional to 607,939.90, 838,930.94 and 335,993.74 is: 463,656.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,939.90 : 838,930.94 = 335,993.74 : x
  2. Step 2: Convert to fraction form
    607,939.90/838,930.94 = 335,993.74/x
  3. Step 3: Cross multiply
    607,939.90x = 838,930.94 × 335,993.74
  4. Step 4: Simplify right side
    607,939.90x = 281,875,544,132.32
  5. Step 5: Solve for x
    x = 281,875,544,132.32/607,939.90
  6. Step 6: Final answer
    x = 463,656.92

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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.