Home / 1,138,254.06-1,570,771.50-621,996.60

Finding the Fourth Proportional to 1,138,254.06, 1,570,771.50 and 621,996.60

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Solution

The fourth proportional to 1,138,254.06, 1,570,771.50 and 621,996.60 is: 858,344.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,254.06 : 1,570,771.50 = 621,996.60 : x
  2. Step 2: Convert to fraction form
    1,138,254.06/1,570,771.50 = 621,996.60/x
  3. Step 3: Cross multiply
    1,138,254.06x = 1,570,771.50 × 621,996.60
  4. Step 4: Simplify right side
    1,138,254.06x = 977,014,532,376.90
  5. Step 5: Solve for x
    x = 977,014,532,376.90/1,138,254.06
  6. Step 6: Final answer
    x = 858,344.87

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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.