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Finding the Fourth Proportional to 750,872, 1,036,203.36 and 449,066

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Solution

The fourth proportional to 750,872, 1,036,203.36 and 449,066 is: 619,711.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,872 : 1,036,203.36 = 449,066 : x
  2. Step 2: Convert to fraction form
    750,872/1,036,203.36 = 449,066/x
  3. Step 3: Cross multiply
    750,872x = 1,036,203.36 × 449,066
  4. Step 4: Simplify right side
    750,872x = 465,323,698,061.76
  5. Step 5: Solve for x
    x = 465,323,698,061.76/750,872
  6. Step 6: Final answer
    x = 619,711.08

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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.