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Finding the Fourth Proportional to 1,038,441, 1,433,048.58 and 561,513

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Solution

The fourth proportional to 1,038,441, 1,433,048.58 and 561,513 is: 774,887.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,441 : 1,433,048.58 = 561,513 : x
  2. Step 2: Convert to fraction form
    1,038,441/1,433,048.58 = 561,513/x
  3. Step 3: Cross multiply
    1,038,441x = 1,433,048.58 × 561,513
  4. Step 4: Simplify right side
    1,038,441x = 804,675,407,301.54
  5. Step 5: Solve for x
    x = 804,675,407,301.54/1,038,441
  6. Step 6: Final answer
    x = 774,887.94

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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.