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Finding the Fourth Proportional to 703,261.22, 970,499.58 and 380,972.64

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Solution

The fourth proportional to 703,261.22, 970,499.58 and 380,972.64 is: 525,741.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,261.22 : 970,499.58 = 380,972.64 : x
  2. Step 2: Convert to fraction form
    703,261.22/970,499.58 = 380,972.64/x
  3. Step 3: Cross multiply
    703,261.22x = 970,499.58 × 380,972.64
  4. Step 4: Simplify right side
    703,261.22x = 369,733,787,111.49
  5. Step 5: Solve for x
    x = 369,733,787,111.49/703,261.22
  6. Step 6: Final answer
    x = 525,741.75

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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.