Home / 985,205.96-1,477,349.64-511,764.20

Finding the Fourth Proportional to 985,205.96, 1,477,349.64 and 511,764.20

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Solution

The fourth proportional to 985,205.96, 1,477,349.64 and 511,764.20 is: 767,407.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,205.96 : 1,477,349.64 = 511,764.20 : x
  2. Step 2: Convert to fraction form
    985,205.96/1,477,349.64 = 511,764.20/x
  3. Step 3: Cross multiply
    985,205.96x = 1,477,349.64 × 511,764.20
  4. Step 4: Simplify right side
    985,205.96x = 756,054,656,634.89
  5. Step 5: Solve for x
    x = 756,054,656,634.89/985,205.96
  6. Step 6: Final answer
    x = 767,407.72

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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.