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Finding the Fourth Proportional to 455,556.30, 683,334.45 and 156,010.20

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Solution

The fourth proportional to 455,556.30, 683,334.45 and 156,010.20 is: 234,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,556.30 : 683,334.45 = 156,010.20 : x
  2. Step 2: Convert to fraction form
    455,556.30/683,334.45 = 156,010.20/x
  3. Step 3: Cross multiply
    455,556.30x = 683,334.45 × 156,010.20
  4. Step 4: Simplify right side
    455,556.30x = 106,607,144,211.39
  5. Step 5: Solve for x
    x = 106,607,144,211.39/455,556.30
  6. Step 6: Final answer
    x = 234,015.30

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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.