Home / 705,539,725.11-973,594,279.89-388,022,328

Finding the Fourth Proportional to 705,539,725.11, 973,594,279.89 and 388,022,328

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Solution

The fourth proportional to 705,539,725.11, 973,594,279.89 and 388,022,328 is: 535,443,016.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,539,725.11 : 973,594,279.89 = 388,022,328 : x
  2. Step 2: Convert to fraction form
    705,539,725.11/973,594,279.89 = 388,022,328/x
  3. Step 3: Cross multiply
    705,539,725.11x = 973,594,279.89 × 388,022,328
  4. Step 4: Simplify right side
    705,539,725.11x = 377,776,319,010,401,408
  5. Step 5: Solve for x
    x = 377,776,319,010,401,408/705,539,725.11
  6. Step 6: Final answer
    x = 535,443,016.98

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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.