Home / 808,528.80-1,212,015.60-628,514.40

Finding the Fourth Proportional to 808,528.80, 1,212,015.60 and 628,514.40

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Solution

The fourth proportional to 808,528.80, 1,212,015.60 and 628,514.40 is: 942,167.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,528.80 : 1,212,015.60 = 628,514.40 : x
  2. Step 2: Convert to fraction form
    808,528.80/1,212,015.60 = 628,514.40/x
  3. Step 3: Cross multiply
    808,528.80x = 1,212,015.60 × 628,514.40
  4. Step 4: Simplify right side
    808,528.80x = 761,769,257,624.64
  5. Step 5: Solve for x
    x = 761,769,257,624.64/808,528.80
  6. Step 6: Final answer
    x = 942,167.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.