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Finding the Fourth Proportional to 703,390.94, 970,143.90 and 605,440.88

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Solution

The fourth proportional to 703,390.94, 970,143.90 and 605,440.88 is: 835,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,390.94 : 970,143.90 = 605,440.88 : x
  2. Step 2: Convert to fraction form
    703,390.94/970,143.90 = 605,440.88/x
  3. Step 3: Cross multiply
    703,390.94x = 970,143.90 × 605,440.88
  4. Step 4: Simplify right side
    703,390.94x = 587,364,776,542.63
  5. Step 5: Solve for x
    x = 587,364,776,542.63/703,390.94
  6. Step 6: Final answer
    x = 835,047.40

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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.