Home / 919,931.40-1,269,503.40-517,523.40

Finding the Fourth Proportional to 919,931.40, 1,269,503.40 and 517,523.40

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Solution

The fourth proportional to 919,931.40, 1,269,503.40 and 517,523.40 is: 714,181.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,931.40 : 1,269,503.40 = 517,523.40 : x
  2. Step 2: Convert to fraction form
    919,931.40/1,269,503.40 = 517,523.40/x
  3. Step 3: Cross multiply
    919,931.40x = 1,269,503.40 × 517,523.40
  4. Step 4: Simplify right side
    919,931.40x = 656,997,715,879.56
  5. Step 5: Solve for x
    x = 656,997,715,879.56/919,931.40
  6. Step 6: Final answer
    x = 714,181.21

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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.