Home / 716,350.69-988,566.33-394,085.35

Finding the Fourth Proportional to 716,350.69, 988,566.33 and 394,085.35

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Solution

The fourth proportional to 716,350.69, 988,566.33 and 394,085.35 is: 543,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,350.69 : 988,566.33 = 394,085.35 : x
  2. Step 2: Convert to fraction form
    716,350.69/988,566.33 = 394,085.35/x
  3. Step 3: Cross multiply
    716,350.69x = 988,566.33 × 394,085.35
  4. Step 4: Simplify right side
    716,350.69x = 389,579,508,156.27
  5. Step 5: Solve for x
    x = 389,579,508,156.27/716,350.69
  6. Step 6: Final answer
    x = 543,839.09

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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.