Home / 345,758.20-477,134.52-190,715.64

Finding the Fourth Proportional to 345,758.20, 477,134.52 and 190,715.64

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Solution

The fourth proportional to 345,758.20, 477,134.52 and 190,715.64 is: 263,181.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,758.20 : 477,134.52 = 190,715.64 : x
  2. Step 2: Convert to fraction form
    345,758.20/477,134.52 = 190,715.64/x
  3. Step 3: Cross multiply
    345,758.20x = 477,134.52 × 190,715.64
  4. Step 4: Simplify right side
    345,758.20x = 90,997,015,347.89
  5. Step 5: Solve for x
    x = 90,997,015,347.89/345,758.20
  6. Step 6: Final answer
    x = 263,181.08

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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.