Home / 376,431.40-519,247.07-223,368.72

Finding the Fourth Proportional to 376,431.40, 519,247.07 and 223,368.72

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Solution

The fourth proportional to 376,431.40, 519,247.07 and 223,368.72 is: 308,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,431.40 : 519,247.07 = 223,368.72 : x
  2. Step 2: Convert to fraction form
    376,431.40/519,247.07 = 223,368.72/x
  3. Step 3: Cross multiply
    376,431.40x = 519,247.07 × 223,368.72
  4. Step 4: Simplify right side
    376,431.40x = 115,983,549,676.57
  5. Step 5: Solve for x
    x = 115,983,549,676.57/376,431.40
  6. Step 6: Final answer
    x = 308,113.38

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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.