Home / 455,905.40-683,858.10-434,132.60

Finding the Fourth Proportional to 455,905.40, 683,858.10 and 434,132.60

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Solution

The fourth proportional to 455,905.40, 683,858.10 and 434,132.60 is: 651,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,905.40 : 683,858.10 = 434,132.60 : x
  2. Step 2: Convert to fraction form
    455,905.40/683,858.10 = 434,132.60/x
  3. Step 3: Cross multiply
    455,905.40x = 683,858.10 × 434,132.60
  4. Step 4: Simplify right side
    455,905.40x = 296,885,094,984.06
  5. Step 5: Solve for x
    x = 296,885,094,984.06/455,905.40
  6. Step 6: Final answer
    x = 651,198.90

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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.