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Finding the Fourth Proportional to 575,124.10, 863,670.30 and 557,409.40

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Solution

The fourth proportional to 575,124.10, 863,670.30 and 557,409.40 is: 837,067.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,124.10 : 863,670.30 = 557,409.40 : x
  2. Step 2: Convert to fraction form
    575,124.10/863,670.30 = 557,409.40/x
  3. Step 3: Cross multiply
    575,124.10x = 863,670.30 × 557,409.40
  4. Step 4: Simplify right side
    575,124.10x = 481,417,943,720.82
  5. Step 5: Solve for x
    x = 481,417,943,720.82/575,124.10
  6. Step 6: Final answer
    x = 837,067.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.