Home / 705,565,179.36-973,654,465.91-388,022,686.47

Finding the Fourth Proportional to 705,565,179.36, 973,654,465.91 and 388,022,686.47

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Solution

The fourth proportional to 705,565,179.36, 973,654,465.91 and 388,022,686.47 is: 535,457,293.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,565,179.36 : 973,654,465.91 = 388,022,686.47 : x
  2. Step 2: Convert to fraction form
    705,565,179.36/973,654,465.91 = 388,022,686.47/x
  3. Step 3: Cross multiply
    705,565,179.36x = 973,654,465.91 × 388,022,686.47
  4. Step 4: Simplify right side
    705,565,179.36x = 377,800,021,553,971,136
  5. Step 5: Solve for x
    x = 377,800,021,553,971,136/705,565,179.36
  6. Step 6: Final answer
    x = 535,457,293.82

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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.