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Finding the Fourth Proportional to 1,572,576, 2,170,156.32 and 857,184

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Solution

The fourth proportional to 1,572,576, 2,170,156.32 and 857,184 is: 1,182,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,576 : 2,170,156.32 = 857,184 : x
  2. Step 2: Convert to fraction form
    1,572,576/2,170,156.32 = 857,184/x
  3. Step 3: Cross multiply
    1,572,576x = 2,170,156.32 × 857,184
  4. Step 4: Simplify right side
    1,572,576x = 1,860,223,275,002.88
  5. Step 5: Solve for x
    x = 1,860,223,275,002.88/1,572,576
  6. Step 6: Final answer
    x = 1,182,914.70

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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.