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Finding the Fourth Proportional to 533,542,465.88, 736,288,602.91 and 289,355,329.88

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Solution

The fourth proportional to 533,542,465.88, 736,288,602.91 and 289,355,329.88 is: 399,310,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,542,465.88 : 736,288,602.91 = 289,355,329.88 : x
  2. Step 2: Convert to fraction form
    533,542,465.88/736,288,602.91 = 289,355,329.88/x
  3. Step 3: Cross multiply
    533,542,465.88x = 736,288,602.91 × 289,355,329.88
  4. Step 4: Simplify right side
    533,542,465.88x = 213,049,031,577,502,560
  5. Step 5: Solve for x
    x = 213,049,031,577,502,560/533,542,465.88
  6. Step 6: Final answer
    x = 399,310,355.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.