Home / 455,211.06-628,191.32-251,262.05

Finding the Fourth Proportional to 455,211.06, 628,191.32 and 251,262.05

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Solution

The fourth proportional to 455,211.06, 628,191.32 and 251,262.05 is: 346,741.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,211.06 : 628,191.32 = 251,262.05 : x
  2. Step 2: Convert to fraction form
    455,211.06/628,191.32 = 251,262.05/x
  3. Step 3: Cross multiply
    455,211.06x = 628,191.32 × 251,262.05
  4. Step 4: Simplify right side
    455,211.06x = 157,840,636,342.61
  5. Step 5: Solve for x
    x = 157,840,636,342.61/455,211.06
  6. Step 6: Final answer
    x = 346,741.66

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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.