Home / 696,961.52-961,452.68-455,385.50

Finding the Fourth Proportional to 696,961.52, 961,452.68 and 455,385.50

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Solution

The fourth proportional to 696,961.52, 961,452.68 and 455,385.50 is: 628,200.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,961.52 : 961,452.68 = 455,385.50 : x
  2. Step 2: Convert to fraction form
    696,961.52/961,452.68 = 455,385.50/x
  3. Step 3: Cross multiply
    696,961.52x = 961,452.68 × 455,385.50
  4. Step 4: Simplify right side
    696,961.52x = 437,831,609,408.14
  5. Step 5: Solve for x
    x = 437,831,609,408.14/696,961.52
  6. Step 6: Final answer
    x = 628,200.55

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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.