Home / 685,264.64-945,677.76-383,457.92

Finding the Fourth Proportional to 685,264.64, 945,677.76 and 383,457.92

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Solution

The fourth proportional to 685,264.64, 945,677.76 and 383,457.92 is: 529,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,264.64 : 945,677.76 = 383,457.92 : x
  2. Step 2: Convert to fraction form
    685,264.64/945,677.76 = 383,457.92/x
  3. Step 3: Cross multiply
    685,264.64x = 945,677.76 × 383,457.92
  4. Step 4: Simplify right side
    685,264.64x = 362,627,626,839.86
  5. Step 5: Solve for x
    x = 362,627,626,839.86/685,264.64
  6. Step 6: Final answer
    x = 529,178.96

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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.