Home / 685,330.58-945,787.12-383,524.58

Finding the Fourth Proportional to 685,330.58, 945,787.12 and 383,524.58

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Solution

The fourth proportional to 685,330.58, 945,787.12 and 383,524.58 is: 529,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,330.58 : 945,787.12 = 383,524.58 : x
  2. Step 2: Convert to fraction form
    685,330.58/945,787.12 = 383,524.58/x
  3. Step 3: Cross multiply
    685,330.58x = 945,787.12 × 383,524.58
  4. Step 4: Simplify right side
    685,330.58x = 362,732,607,967.41
  5. Step 5: Solve for x
    x = 362,732,607,967.41/685,330.58
  6. Step 6: Final answer
    x = 529,281.22

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Double scale
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1.5x scale

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.