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Finding the Fourth Proportional to 404,640.26, 607,038.51 and 155,302.82

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Solution

The fourth proportional to 404,640.26, 607,038.51 and 155,302.82 is: 232,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,640.26 : 607,038.51 = 155,302.82 : x
  2. Step 2: Convert to fraction form
    404,640.26/607,038.51 = 155,302.82/x
  3. Step 3: Cross multiply
    404,640.26x = 607,038.51 × 155,302.82
  4. Step 4: Simplify right side
    404,640.26x = 94,274,792,451.60
  5. Step 5: Solve for x
    x = 94,274,792,451.60/404,640.26
  6. Step 6: Final answer
    x = 232,984.21

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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.