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Finding the Fourth Proportional to 692,506.41, 948,729.36 and 666,609.93

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Solution

The fourth proportional to 692,506.41, 948,729.36 and 666,609.93 is: 913,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,506.41 : 948,729.36 = 666,609.93 : x
  2. Step 2: Convert to fraction form
    692,506.41/948,729.36 = 666,609.93/x
  3. Step 3: Cross multiply
    692,506.41x = 948,729.36 × 666,609.93
  4. Step 4: Simplify right side
    692,506.41x = 632,432,408,925.50
  5. Step 5: Solve for x
    x = 632,432,408,925.50/692,506.41
  6. Step 6: Final answer
    x = 913,251.34

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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.