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Finding the Fourth Proportional to 604,979,329.20, 906,713,166.60 and 443,232,308.40

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Solution

The fourth proportional to 604,979,329.20, 906,713,166.60 and 443,232,308.40 is: 664,294,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,979,329.20 : 906,713,166.60 = 443,232,308.40 : x
  2. Step 2: Convert to fraction form
    604,979,329.20/906,713,166.60 = 443,232,308.40/x
  3. Step 3: Cross multiply
    604,979,329.20x = 906,713,166.60 × 443,232,308.40
  4. Step 4: Simplify right side
    604,979,329.20x = 401,884,569,888,791,744
  5. Step 5: Solve for x
    x = 401,884,569,888,791,744/604,979,329.20
  6. Step 6: Final answer
    x = 664,294,713.04

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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.