Home / 685,256.64-945,666.72-383,449.92

Finding the Fourth Proportional to 685,256.64, 945,666.72 and 383,449.92

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Solution

The fourth proportional to 685,256.64, 945,666.72 and 383,449.92 is: 529,167.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,256.64 : 945,666.72 = 383,449.92 : x
  2. Step 2: Convert to fraction form
    685,256.64/945,666.72 = 383,449.92/x
  3. Step 3: Cross multiply
    685,256.64x = 945,666.72 × 383,449.92
  4. Step 4: Simplify right side
    685,256.64x = 362,615,828,130.66
  5. Step 5: Solve for x
    x = 362,615,828,130.66/685,256.64
  6. Step 6: Final answer
    x = 529,167.92

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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.