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Finding the Fourth Proportional to 692,881.34, 949,231.62 and 666,976.26

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Solution

The fourth proportional to 692,881.34, 949,231.62 and 666,976.26 is: 913,742.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,881.34 : 949,231.62 = 666,976.26 : x
  2. Step 2: Convert to fraction form
    692,881.34/949,231.62 = 666,976.26/x
  3. Step 3: Cross multiply
    692,881.34x = 949,231.62 × 666,976.26
  4. Step 4: Simplify right side
    692,881.34x = 633,114,955,781.34
  5. Step 5: Solve for x
    x = 633,114,955,781.34/692,881.34
  6. Step 6: Final answer
    x = 913,742.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.