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Finding the Fourth Proportional to 879,819, 1,214,151.03 and 477,411

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Solution

The fourth proportional to 879,819, 1,214,151.03 and 477,411 is: 658,827.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,819 : 1,214,151.03 = 477,411 : x
  2. Step 2: Convert to fraction form
    879,819/1,214,151.03 = 477,411/x
  3. Step 3: Cross multiply
    879,819x = 1,214,151.03 × 477,411
  4. Step 4: Simplify right side
    879,819x = 579,649,057,383.33
  5. Step 5: Solve for x
    x = 579,649,057,383.33/879,819
  6. Step 6: Final answer
    x = 658,827.62

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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.