Home / 716,961.45-989,419.26-411,087.63

Finding the Fourth Proportional to 716,961.45, 989,419.26 and 411,087.63

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Solution

The fourth proportional to 716,961.45, 989,419.26 and 411,087.63 is: 567,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,961.45 : 989,419.26 = 411,087.63 : x
  2. Step 2: Convert to fraction form
    716,961.45/989,419.26 = 411,087.63/x
  3. Step 3: Cross multiply
    716,961.45x = 989,419.26 × 411,087.63
  4. Step 4: Simplify right side
    716,961.45x = 406,738,018,669.75
  5. Step 5: Solve for x
    x = 406,738,018,669.75/716,961.45
  6. Step 6: Final answer
    x = 567,308.07

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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.