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Finding the Fourth Proportional to 403,787.74, 604,970.72 and 359,805.90

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Solution

The fourth proportional to 403,787.74, 604,970.72 and 359,805.90 is: 539,075.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,787.74 : 604,970.72 = 359,805.90 : x
  2. Step 2: Convert to fraction form
    403,787.74/604,970.72 = 359,805.90/x
  3. Step 3: Cross multiply
    403,787.74x = 604,970.72 × 359,805.90
  4. Step 4: Simplify right side
    403,787.74x = 217,672,034,383.25
  5. Step 5: Solve for x
    x = 217,672,034,383.25/403,787.74
  6. Step 6: Final answer
    x = 539,075.39

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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.