Home / 899,635.11-1,241,495.40-491,739.63

Finding the Fourth Proportional to 899,635.11, 1,241,495.40 and 491,739.63

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Solution

The fourth proportional to 899,635.11, 1,241,495.40 and 491,739.63 is: 678,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,635.11 : 1,241,495.40 = 491,739.63 : x
  2. Step 2: Convert to fraction form
    899,635.11/1,241,495.40 = 491,739.63/x
  3. Step 3: Cross multiply
    899,635.11x = 1,241,495.40 × 491,739.63
  4. Step 4: Simplify right side
    899,635.11x = 610,492,488,642.70
  5. Step 5: Solve for x
    x = 610,492,488,642.70/899,635.11
  6. Step 6: Final answer
    x = 678,600.11

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Double scale
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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.