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Finding the Fourth Proportional to 351,512.51, 484,724.48 and 300,693.47

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Solution

The fourth proportional to 351,512.51, 484,724.48 and 300,693.47 is: 414,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,512.51 : 484,724.48 = 300,693.47 : x
  2. Step 2: Convert to fraction form
    351,512.51/484,724.48 = 300,693.47/x
  3. Step 3: Cross multiply
    351,512.51x = 484,724.48 × 300,693.47
  4. Step 4: Simplify right side
    351,512.51x = 145,753,482,803.76
  5. Step 5: Solve for x
    x = 145,753,482,803.76/351,512.51
  6. Step 6: Final answer
    x = 414,646.64

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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.