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Finding the Fourth Proportional to 604,300.80, 907,107.30 and 379,914.60

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Solution

The fourth proportional to 604,300.80, 907,107.30 and 379,914.60 is: 570,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,300.80 : 907,107.30 = 379,914.60 : x
  2. Step 2: Convert to fraction form
    604,300.80/907,107.30 = 379,914.60/x
  3. Step 3: Cross multiply
    604,300.80x = 907,107.30 × 379,914.60
  4. Step 4: Simplify right side
    604,300.80x = 344,623,307,036.58
  5. Step 5: Solve for x
    x = 344,623,307,036.58/604,300.80
  6. Step 6: Final answer
    x = 570,284.38

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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.