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Finding the Fourth Proportional to 288,447.45, 432,669.50 and 117,668.57

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Solution

The fourth proportional to 288,447.45, 432,669.50 and 117,668.57 is: 176,502.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,447.45 : 432,669.50 = 117,668.57 : x
  2. Step 2: Convert to fraction form
    288,447.45/432,669.50 = 117,668.57/x
  3. Step 3: Cross multiply
    288,447.45x = 432,669.50 × 117,668.57
  4. Step 4: Simplify right side
    288,447.45x = 50,911,599,037.18
  5. Step 5: Solve for x
    x = 50,911,599,037.18/288,447.45
  6. Step 6: Final answer
    x = 176,502.17

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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.