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Finding the Fourth Proportional to 575,340.78, 861,734.33 and 372,283.98

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Solution

The fourth proportional to 575,340.78, 861,734.33 and 372,283.98 is: 557,599.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,340.78 : 861,734.33 = 372,283.98 : x
  2. Step 2: Convert to fraction form
    575,340.78/861,734.33 = 372,283.98/x
  3. Step 3: Cross multiply
    575,340.78x = 861,734.33 × 372,283.98
  4. Step 4: Simplify right side
    575,340.78x = 320,809,886,075.03
  5. Step 5: Solve for x
    x = 320,809,886,075.03/575,340.78
  6. Step 6: Final answer
    x = 557,599.77

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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.