Home / 986,000.40-1,478,563.20-453,684.60

Finding the Fourth Proportional to 986,000.40, 1,478,563.20 and 453,684.60

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Solution

The fourth proportional to 986,000.40, 1,478,563.20 and 453,684.60 is: 680,325.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,000.40 : 1,478,563.20 = 453,684.60 : x
  2. Step 2: Convert to fraction form
    986,000.40/1,478,563.20 = 453,684.60/x
  3. Step 3: Cross multiply
    986,000.40x = 1,478,563.20 × 453,684.60
  4. Step 4: Simplify right side
    986,000.40x = 670,801,353,966.72
  5. Step 5: Solve for x
    x = 670,801,353,966.72/986,000.40
  6. Step 6: Final answer
    x = 680,325.64

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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.