Home / 1,953,776.85-2,696,211.99-1,189,830.40

Finding the Fourth Proportional to 1,953,776.85, 2,696,211.99 and 1,189,830.40

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Solution

The fourth proportional to 1,953,776.85, 2,696,211.99 and 1,189,830.40 is: 1,641,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953,776.85 : 2,696,211.99 = 1,189,830.40 : x
  2. Step 2: Convert to fraction form
    1,953,776.85/2,696,211.99 = 1,189,830.40/x
  3. Step 3: Cross multiply
    1,953,776.85x = 2,696,211.99 × 1,189,830.40
  4. Step 4: Simplify right side
    1,953,776.85x = 3,208,034,990,546.50
  5. Step 5: Solve for x
    x = 3,208,034,990,546.50/1,953,776.85
  6. Step 6: Final answer
    x = 1,641,965.91

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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.