Home / 756,189.47-1,043,526.85-412,021.28

Finding the Fourth Proportional to 756,189.47, 1,043,526.85 and 412,021.28

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Solution

The fourth proportional to 756,189.47, 1,043,526.85 and 412,021.28 is: 568,581.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,189.47 : 1,043,526.85 = 412,021.28 : x
  2. Step 2: Convert to fraction form
    756,189.47/1,043,526.85 = 412,021.28/x
  3. Step 3: Cross multiply
    756,189.47x = 1,043,526.85 × 412,021.28
  4. Step 4: Simplify right side
    756,189.47x = 429,955,270,030.13
  5. Step 5: Solve for x
    x = 429,955,270,030.13/756,189.47
  6. Step 6: Final answer
    x = 568,581.40

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Double scale
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Similar ratio
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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.