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Finding the Fourth Proportional to 557,282.84, 769,285.76 and 376,240.01

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Solution

The fourth proportional to 557,282.84, 769,285.76 and 376,240.01 is: 519,370.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,282.84 : 769,285.76 = 376,240.01 : x
  2. Step 2: Convert to fraction form
    557,282.84/769,285.76 = 376,240.01/x
  3. Step 3: Cross multiply
    557,282.84x = 769,285.76 × 376,240.01
  4. Step 4: Simplify right side
    557,282.84x = 289,436,076,307.63
  5. Step 5: Solve for x
    x = 289,436,076,307.63/557,282.84
  6. Step 6: Final answer
    x = 519,370.16

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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.