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Finding the Fourth Proportional to 316,196.77, 436,228.95 and 201,454.87

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Solution

The fourth proportional to 316,196.77, 436,228.95 and 201,454.87 is: 277,929.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,196.77 : 436,228.95 = 201,454.87 : x
  2. Step 2: Convert to fraction form
    316,196.77/436,228.95 = 201,454.87/x
  3. Step 3: Cross multiply
    316,196.77x = 436,228.95 × 201,454.87
  4. Step 4: Simplify right side
    316,196.77x = 87,880,446,412.49
  5. Step 5: Solve for x
    x = 87,880,446,412.49/316,196.77
  6. Step 6: Final answer
    x = 277,929.61

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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.