Home / 313,461.12-432,515.52-186,176.64

Finding the Fourth Proportional to 313,461.12, 432,515.52 and 186,176.64

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Solution

The fourth proportional to 313,461.12, 432,515.52 and 186,176.64 is: 256,887.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,461.12 : 432,515.52 = 186,176.64 : x
  2. Step 2: Convert to fraction form
    313,461.12/432,515.52 = 186,176.64/x
  3. Step 3: Cross multiply
    313,461.12x = 432,515.52 × 186,176.64
  4. Step 4: Simplify right side
    313,461.12x = 80,524,286,261.45
  5. Step 5: Solve for x
    x = 80,524,286,261.45/313,461.12
  6. Step 6: Final answer
    x = 256,887.64

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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.