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Finding the Fourth Proportional to 404,787.61, 607,075.39 and 120,401.70

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Solution

The fourth proportional to 404,787.61, 607,075.39 and 120,401.70 is: 180,571.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,787.61 : 607,075.39 = 120,401.70 : x
  2. Step 2: Convert to fraction form
    404,787.61/607,075.39 = 120,401.70/x
  3. Step 3: Cross multiply
    404,787.61x = 607,075.39 × 120,401.70
  4. Step 4: Simplify right side
    404,787.61x = 73,092,908,984.16
  5. Step 5: Solve for x
    x = 73,092,908,984.16/404,787.61
  6. Step 6: Final answer
    x = 180,571.01

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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.