Home / 383,926.80-575,890.20-257,955.60

Finding the Fourth Proportional to 383,926.80, 575,890.20 and 257,955.60

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Solution

The fourth proportional to 383,926.80, 575,890.20 and 257,955.60 is: 386,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,926.80 : 575,890.20 = 257,955.60 : x
  2. Step 2: Convert to fraction form
    383,926.80/575,890.20 = 257,955.60/x
  3. Step 3: Cross multiply
    383,926.80x = 575,890.20 × 257,955.60
  4. Step 4: Simplify right side
    383,926.80x = 148,554,102,075.12
  5. Step 5: Solve for x
    x = 148,554,102,075.12/383,926.80
  6. Step 6: Final answer
    x = 386,933.40

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Similar ratio
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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.