Home / 821,741.18-1,134,352.01-499,554.16

Finding the Fourth Proportional to 821,741.18, 1,134,352.01 and 499,554.16

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Solution

The fourth proportional to 821,741.18, 1,134,352.01 and 499,554.16 is: 689,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,741.18 : 1,134,352.01 = 499,554.16 : x
  2. Step 2: Convert to fraction form
    821,741.18/1,134,352.01 = 499,554.16/x
  3. Step 3: Cross multiply
    821,741.18x = 1,134,352.01 × 499,554.16
  4. Step 4: Simplify right side
    821,741.18x = 566,670,263,912.87
  5. Step 5: Solve for x
    x = 566,670,263,912.87/821,741.18
  6. Step 6: Final answer
    x = 689,597.02

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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.