Home / 692,890.70-949,244.39-666,985.64

Finding the Fourth Proportional to 692,890.70, 949,244.39 and 666,985.64

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Solution

The fourth proportional to 692,890.70, 949,244.39 and 666,985.64 is: 913,755.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,890.70 : 949,244.39 = 666,985.64 : x
  2. Step 2: Convert to fraction form
    692,890.70/949,244.39 = 666,985.64/x
  3. Step 3: Cross multiply
    692,890.70x = 949,244.39 × 666,985.64
  4. Step 4: Simplify right side
    692,890.70x = 633,132,373,356.85
  5. Step 5: Solve for x
    x = 633,132,373,356.85/692,890.70
  6. Step 6: Final answer
    x = 913,755.04

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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.