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Finding the Fourth Proportional to 604,930,338.40, 907,395,507.60 and 298,369,314.40

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Solution

The fourth proportional to 604,930,338.40, 907,395,507.60 and 298,369,314.40 is: 447,553,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,930,338.40 : 907,395,507.60 = 298,369,314.40 : x
  2. Step 2: Convert to fraction form
    604,930,338.40/907,395,507.60 = 298,369,314.40/x
  3. Step 3: Cross multiply
    604,930,338.40x = 907,395,507.60 × 298,369,314.40
  4. Step 4: Simplify right side
    604,930,338.40x = 270,738,975,492,251,968
  5. Step 5: Solve for x
    x = 270,738,975,492,251,968/604,930,338.40
  6. Step 6: Final answer
    x = 447,553,971.60

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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.