Home / 1,185,771.03-1,636,354.35-641,895.72

Finding the Fourth Proportional to 1,185,771.03, 1,636,354.35 and 641,895.72

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Solution

The fourth proportional to 1,185,771.03, 1,636,354.35 and 641,895.72 is: 885,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,771.03 : 1,636,354.35 = 641,895.72 : x
  2. Step 2: Convert to fraction form
    1,185,771.03/1,636,354.35 = 641,895.72/x
  3. Step 3: Cross multiply
    1,185,771.03x = 1,636,354.35 × 641,895.72
  4. Step 4: Simplify right side
    1,185,771.03x = 1,050,368,853,668.38
  5. Step 5: Solve for x
    x = 1,050,368,853,668.38/1,185,771.03
  6. Step 6: Final answer
    x = 885,810.86

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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.