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Finding the Fourth Proportional to 1,070,822.81, 1,477,721.53 and 611,932.16

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Solution

The fourth proportional to 1,070,822.81, 1,477,721.53 and 611,932.16 is: 844,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,822.81 : 1,477,721.53 = 611,932.16 : x
  2. Step 2: Convert to fraction form
    1,070,822.81/1,477,721.53 = 611,932.16/x
  3. Step 3: Cross multiply
    1,070,822.81x = 1,477,721.53 × 611,932.16
  4. Step 4: Simplify right side
    1,070,822.81x = 904,265,327,731.41
  5. Step 5: Solve for x
    x = 904,265,327,731.41/1,070,822.81
  6. Step 6: Final answer
    x = 844,458.41

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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.