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Finding the Fourth Proportional to 604,428.80, 907,341.60 and 324,492.80

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Solution

The fourth proportional to 604,428.80, 907,341.60 and 324,492.80 is: 487,114.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,428.80 : 907,341.60 = 324,492.80 : x
  2. Step 2: Convert to fraction form
    604,428.80/907,341.60 = 324,492.80/x
  3. Step 3: Cross multiply
    604,428.80x = 907,341.60 × 324,492.80
  4. Step 4: Simplify right side
    604,428.80x = 294,425,816,340.48
  5. Step 5: Solve for x
    x = 294,425,816,340.48/604,428.80
  6. Step 6: Final answer
    x = 487,114.14

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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.