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Finding the Fourth Proportional to 703,644.81, 971,033.18 and 381,354.82

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Solution

The fourth proportional to 703,644.81, 971,033.18 and 381,354.82 is: 526,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,644.81 : 971,033.18 = 381,354.82 : x
  2. Step 2: Convert to fraction form
    703,644.81/971,033.18 = 381,354.82/x
  3. Step 3: Cross multiply
    703,644.81x = 971,033.18 × 381,354.82
  4. Step 4: Simplify right side
    703,644.81x = 370,308,183,572.93
  5. Step 5: Solve for x
    x = 370,308,183,572.93/703,644.81
  6. Step 6: Final answer
    x = 526,271.46

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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.