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Finding the Fourth Proportional to 692,207, 955,245.66 and 374,255

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Solution

The fourth proportional to 692,207, 955,245.66 and 374,255 is: 516,471.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,207 : 955,245.66 = 374,255 : x
  2. Step 2: Convert to fraction form
    692,207/955,245.66 = 374,255/x
  3. Step 3: Cross multiply
    692,207x = 955,245.66 × 374,255
  4. Step 4: Simplify right side
    692,207x = 357,505,464,483.30
  5. Step 5: Solve for x
    x = 357,505,464,483.30/692,207
  6. Step 6: Final answer
    x = 516,471.90

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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.