Home / 1,385,606.80-2,078,410.20-439,267.60

Finding the Fourth Proportional to 1,385,606.80, 2,078,410.20 and 439,267.60

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Solution

The fourth proportional to 1,385,606.80, 2,078,410.20 and 439,267.60 is: 658,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,606.80 : 2,078,410.20 = 439,267.60 : x
  2. Step 2: Convert to fraction form
    1,385,606.80/2,078,410.20 = 439,267.60/x
  3. Step 3: Cross multiply
    1,385,606.80x = 2,078,410.20 × 439,267.60
  4. Step 4: Simplify right side
    1,385,606.80x = 912,978,260,369.52
  5. Step 5: Solve for x
    x = 912,978,260,369.52/1,385,606.80
  6. Step 6: Final answer
    x = 658,901.40

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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.