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Finding the Fourth Proportional to 692,939.67, 956,229.75 and 434,955.21

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Solution

The fourth proportional to 692,939.67, 956,229.75 and 434,955.21 is: 600,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,939.67 : 956,229.75 = 434,955.21 : x
  2. Step 2: Convert to fraction form
    692,939.67/956,229.75 = 434,955.21/x
  3. Step 3: Cross multiply
    692,939.67x = 956,229.75 × 434,955.21
  4. Step 4: Simplify right side
    692,939.67x = 415,917,111,719.50
  5. Step 5: Solve for x
    x = 415,917,111,719.50/692,939.67
  6. Step 6: Final answer
    x = 600,221.25

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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.