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Finding the Fourth Proportional to 607,754.16, 911,009.08 and 307,678.32

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Solution

The fourth proportional to 607,754.16, 911,009.08 and 307,678.32 is: 461,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,754.16 : 911,009.08 = 307,678.32 : x
  2. Step 2: Convert to fraction form
    607,754.16/911,009.08 = 307,678.32/x
  3. Step 3: Cross multiply
    607,754.16x = 911,009.08 × 307,678.32
  4. Step 4: Simplify right side
    607,754.16x = 280,297,743,239.15
  5. Step 5: Solve for x
    x = 280,297,743,239.15/607,754.16
  6. Step 6: Final answer
    x = 461,202.51

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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.