Home / 1,100,134.50-1,518,191.09-641,567.07

Finding the Fourth Proportional to 1,100,134.50, 1,518,191.09 and 641,567.07

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Solution

The fourth proportional to 1,100,134.50, 1,518,191.09 and 641,567.07 is: 885,365.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,134.50 : 1,518,191.09 = 641,567.07 : x
  2. Step 2: Convert to fraction form
    1,100,134.50/1,518,191.09 = 641,567.07/x
  3. Step 3: Cross multiply
    1,100,134.50x = 1,518,191.09 × 641,567.07
  4. Step 4: Simplify right side
    1,100,134.50x = 974,021,406,103.57
  5. Step 5: Solve for x
    x = 974,021,406,103.57/1,100,134.50
  6. Step 6: Final answer
    x = 885,365.75

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Double scale
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1.5x scale

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.