Home / 2,128,278.40-3,192,417.60-1,008,534.40

Finding the Fourth Proportional to 2,128,278.40, 3,192,417.60 and 1,008,534.40

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Solution

The fourth proportional to 2,128,278.40, 3,192,417.60 and 1,008,534.40 is: 1,512,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,278.40 : 3,192,417.60 = 1,008,534.40 : x
  2. Step 2: Convert to fraction form
    2,128,278.40/3,192,417.60 = 1,008,534.40/x
  3. Step 3: Cross multiply
    2,128,278.40x = 3,192,417.60 × 1,008,534.40
  4. Step 4: Simplify right side
    2,128,278.40x = 3,219,662,968,765.44
  5. Step 5: Solve for x
    x = 3,219,662,968,765.44/2,128,278.40
  6. Step 6: Final answer
    x = 1,512,801.60

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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.