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Finding the Fourth Proportional to 371,411.60, 557,435.55 and 368,615.89

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Solution

The fourth proportional to 371,411.60, 557,435.55 and 368,615.89 is: 553,239.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,411.60 : 557,435.55 = 368,615.89 : x
  2. Step 2: Convert to fraction form
    371,411.60/557,435.55 = 368,615.89/x
  3. Step 3: Cross multiply
    371,411.60x = 557,435.55 × 368,615.89
  4. Step 4: Simplify right side
    371,411.60x = 205,479,598,782.01
  5. Step 5: Solve for x
    x = 205,479,598,782.01/371,411.60
  6. Step 6: Final answer
    x = 553,239.58

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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.