Home / 674,917.75-931,405.94-373,131.19

Finding the Fourth Proportional to 674,917.75, 931,405.94 and 373,131.19

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Solution

The fourth proportional to 674,917.75, 931,405.94 and 373,131.19 is: 514,931.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,917.75 : 931,405.94 = 373,131.19 : x
  2. Step 2: Convert to fraction form
    674,917.75/931,405.94 = 373,131.19/x
  3. Step 3: Cross multiply
    674,917.75x = 931,405.94 × 373,131.19
  4. Step 4: Simplify right side
    674,917.75x = 347,536,604,899.61
  5. Step 5: Solve for x
    x = 347,536,604,899.61/674,917.75
  6. Step 6: Final answer
    x = 514,931.79

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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.