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Finding the Fourth Proportional to 703,426.22, 970,683.09 and 393,354.34

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Solution

The fourth proportional to 703,426.22, 970,683.09 and 393,354.34 is: 542,803.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,426.22 : 970,683.09 = 393,354.34 : x
  2. Step 2: Convert to fraction form
    703,426.22/970,683.09 = 393,354.34/x
  3. Step 3: Cross multiply
    703,426.22x = 970,683.09 × 393,354.34
  4. Step 4: Simplify right side
    703,426.22x = 381,822,406,216.11
  5. Step 5: Solve for x
    x = 381,822,406,216.11/703,426.22
  6. Step 6: Final answer
    x = 542,803.77

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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.