Home / 1,156,427.08-1,595,881.94-640,189.53

Finding the Fourth Proportional to 1,156,427.08, 1,595,881.94 and 640,189.53

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Solution

The fourth proportional to 1,156,427.08, 1,595,881.94 and 640,189.53 is: 883,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,156,427.08 : 1,595,881.94 = 640,189.53 : x
  2. Step 2: Convert to fraction form
    1,156,427.08/1,595,881.94 = 640,189.53/x
  3. Step 3: Cross multiply
    1,156,427.08x = 1,595,881.94 × 640,189.53
  4. Step 4: Simplify right side
    1,156,427.08x = 1,021,666,905,903.14
  5. Step 5: Solve for x
    x = 1,021,666,905,903.14/1,156,427.08
  6. Step 6: Final answer
    x = 883,468.51

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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.