Home / 628,799.63-867,962.18-374,145.35

Finding the Fourth Proportional to 628,799.63, 867,962.18 and 374,145.35

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Solution

The fourth proportional to 628,799.63, 867,962.18 and 374,145.35 is: 516,450.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,799.63 : 867,962.18 = 374,145.35 : x
  2. Step 2: Convert to fraction form
    628,799.63/867,962.18 = 374,145.35/x
  3. Step 3: Cross multiply
    628,799.63x = 867,962.18 × 374,145.35
  4. Step 4: Simplify right side
    628,799.63x = 324,744,010,218.42
  5. Step 5: Solve for x
    x = 324,744,010,218.42/628,799.63
  6. Step 6: Final answer
    x = 516,450.71

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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.