Home / 291,303.40-436,955.10-172,913.80

Finding the Fourth Proportional to 291,303.40, 436,955.10 and 172,913.80

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Solution

The fourth proportional to 291,303.40, 436,955.10 and 172,913.80 is: 259,370.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,303.40 : 436,955.10 = 172,913.80 : x
  2. Step 2: Convert to fraction form
    291,303.40/436,955.10 = 172,913.80/x
  3. Step 3: Cross multiply
    291,303.40x = 436,955.10 × 172,913.80
  4. Step 4: Simplify right side
    291,303.40x = 75,555,566,770.38
  5. Step 5: Solve for x
    x = 75,555,566,770.38/291,303.40
  6. Step 6: Final answer
    x = 259,370.70

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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.