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Finding the Fourth Proportional to 692,407, 955,524.54 and 374,455

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Solution

The fourth proportional to 692,407, 955,524.54 and 374,455 is: 516,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,407 : 955,524.54 = 374,455 : x
  2. Step 2: Convert to fraction form
    692,407/955,524.54 = 374,455/x
  3. Step 3: Cross multiply
    692,407x = 955,524.54 × 374,455
  4. Step 4: Simplify right side
    692,407x = 357,800,941,625.70
  5. Step 5: Solve for x
    x = 357,800,941,625.70/692,407
  6. Step 6: Final answer
    x = 516,749.46

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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.