Home / 1,121,173.48-1,680,759.96-411,035.68

Finding the Fourth Proportional to 1,121,173.48, 1,680,759.96 and 411,035.68

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Solution

The fourth proportional to 1,121,173.48, 1,680,759.96 and 411,035.68 is: 616,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,173.48 : 1,680,759.96 = 411,035.68 : x
  2. Step 2: Convert to fraction form
    1,121,173.48/1,680,759.96 = 411,035.68/x
  3. Step 3: Cross multiply
    1,121,173.48x = 1,680,759.96 × 411,035.68
  4. Step 4: Simplify right side
    1,121,173.48x = 690,852,313,075.37
  5. Step 5: Solve for x
    x = 690,852,313,075.37/1,121,173.48
  6. Step 6: Final answer
    x = 616,186.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.