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Finding the Fourth Proportional to 692,506.62, 948,729.64 and 666,610.14

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Solution

The fourth proportional to 692,506.62, 948,729.64 and 666,610.14 is: 913,251.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,506.62 : 948,729.64 = 666,610.14 : x
  2. Step 2: Convert to fraction form
    692,506.62/948,729.64 = 666,610.14/x
  3. Step 3: Cross multiply
    692,506.62x = 948,729.64 × 666,610.14
  4. Step 4: Simplify right side
    692,506.62x = 632,432,790,065.85
  5. Step 5: Solve for x
    x = 632,432,790,065.85/692,506.62
  6. Step 6: Final answer
    x = 913,251.62

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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.