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Finding the Fourth Proportional to 316,415.98, 436,567.55 and 180,400.33

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Solution

The fourth proportional to 316,415.98, 436,567.55 and 180,400.33 is: 248,903.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,415.98 : 436,567.55 = 180,400.33 : x
  2. Step 2: Convert to fraction form
    316,415.98/436,567.55 = 180,400.33/x
  3. Step 3: Cross multiply
    316,415.98x = 436,567.55 × 180,400.33
  4. Step 4: Simplify right side
    316,415.98x = 78,756,930,087.29
  5. Step 5: Solve for x
    x = 78,756,930,087.29/316,415.98
  6. Step 6: Final answer
    x = 248,903.14

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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.