Home / 403,503.19-556,813.07-231,412.25

Finding the Fourth Proportional to 403,503.19, 556,813.07 and 231,412.25

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Solution

The fourth proportional to 403,503.19, 556,813.07 and 231,412.25 is: 319,336.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,503.19 : 556,813.07 = 231,412.25 : x
  2. Step 2: Convert to fraction form
    403,503.19/556,813.07 = 231,412.25/x
  3. Step 3: Cross multiply
    403,503.19x = 556,813.07 × 231,412.25
  4. Step 4: Simplify right side
    403,503.19x = 128,853,364,201.05
  5. Step 5: Solve for x
    x = 128,853,364,201.05/403,503.19
  6. Step 6: Final answer
    x = 319,336.67

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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.