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Finding the Fourth Proportional to 703,605.38, 971,079.64 and 445,506.32

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Solution

The fourth proportional to 703,605.38, 971,079.64 and 445,506.32 is: 614,864.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,605.38 : 971,079.64 = 445,506.32 : x
  2. Step 2: Convert to fraction form
    703,605.38/971,079.64 = 445,506.32/x
  3. Step 3: Cross multiply
    703,605.38x = 971,079.64 × 445,506.32
  4. Step 4: Simplify right side
    703,605.38x = 432,622,118,157.26
  5. Step 5: Solve for x
    x = 432,622,118,157.26/703,605.38
  6. Step 6: Final answer
    x = 614,864.71

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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.