Home / 1,688,770.50-2,329,814.79-999,930.30

Finding the Fourth Proportional to 1,688,770.50, 2,329,814.79 and 999,930.30

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Solution

The fourth proportional to 1,688,770.50, 2,329,814.79 and 999,930.30 is: 1,379,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,770.50 : 2,329,814.79 = 999,930.30 : x
  2. Step 2: Convert to fraction form
    1,688,770.50/2,329,814.79 = 999,930.30/x
  3. Step 3: Cross multiply
    1,688,770.50x = 2,329,814.79 × 999,930.30
  4. Step 4: Simplify right side
    1,688,770.50x = 2,329,652,401,909.14
  5. Step 5: Solve for x
    x = 2,329,652,401,909.14/1,688,770.50
  6. Step 6: Final answer
    x = 1,379,496.15

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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.