Home / 1,149,492.07-1,586,299.08-640,194.40

Finding the Fourth Proportional to 1,149,492.07, 1,586,299.08 and 640,194.40

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Solution

The fourth proportional to 1,149,492.07, 1,586,299.08 and 640,194.40 is: 883,468.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,492.07 : 1,586,299.08 = 640,194.40 : x
  2. Step 2: Convert to fraction form
    1,149,492.07/1,586,299.08 = 640,194.40/x
  3. Step 3: Cross multiply
    1,149,492.07x = 1,586,299.08 × 640,194.40
  4. Step 4: Simplify right side
    1,149,492.07x = 1,015,539,787,741.15
  5. Step 5: Solve for x
    x = 1,015,539,787,741.15/1,149,492.07
  6. Step 6: Final answer
    x = 883,468.29

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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.