Home / 716,918.13-989,231.23-410,938.20

Finding the Fourth Proportional to 716,918.13, 989,231.23 and 410,938.20

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Solution

The fourth proportional to 716,918.13, 989,231.23 and 410,938.20 is: 567,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,918.13 : 989,231.23 = 410,938.20 : x
  2. Step 2: Convert to fraction form
    716,918.13/989,231.23 = 410,938.20/x
  3. Step 3: Cross multiply
    716,918.13x = 989,231.23 × 410,938.20
  4. Step 4: Simplify right side
    716,918.13x = 406,512,901,039.99
  5. Step 5: Solve for x
    x = 406,512,901,039.99/716,918.13
  6. Step 6: Final answer
    x = 567,028.35

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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.