Home / 853,457.11-1,177,804.74-490,880.59

Finding the Fourth Proportional to 853,457.11, 1,177,804.74 and 490,880.59

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Solution

The fourth proportional to 853,457.11, 1,177,804.74 and 490,880.59 is: 677,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,457.11 : 1,177,804.74 = 490,880.59 : x
  2. Step 2: Convert to fraction form
    853,457.11/1,177,804.74 = 490,880.59/x
  3. Step 3: Cross multiply
    853,457.11x = 1,177,804.74 × 490,880.59
  4. Step 4: Simplify right side
    853,457.11x = 578,161,485,676.00
  5. Step 5: Solve for x
    x = 578,161,485,676.00/853,457.11
  6. Step 6: Final answer
    x = 677,434.73

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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.