Home / 838,142.08-1,156,636.04-456,171.58

Finding the Fourth Proportional to 838,142.08, 1,156,636.04 and 456,171.58

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Solution

The fourth proportional to 838,142.08, 1,156,636.04 and 456,171.58 is: 629,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,142.08 : 1,156,636.04 = 456,171.58 : x
  2. Step 2: Convert to fraction form
    838,142.08/1,156,636.04 = 456,171.58/x
  3. Step 3: Cross multiply
    838,142.08x = 1,156,636.04 × 456,171.58
  4. Step 4: Simplify right side
    838,142.08x = 527,624,489,851.74
  5. Step 5: Solve for x
    x = 527,624,489,851.74/838,142.08
  6. Step 6: Final answer
    x = 629,516.76

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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.