Home / 685,182.51-945,527.58-379,259.55

Finding the Fourth Proportional to 685,182.51, 945,527.58 and 379,259.55

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Solution

The fourth proportional to 685,182.51, 945,527.58 and 379,259.55 is: 523,364.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,182.51 : 945,527.58 = 379,259.55 : x
  2. Step 2: Convert to fraction form
    685,182.51/945,527.58 = 379,259.55/x
  3. Step 3: Cross multiply
    685,182.51x = 945,527.58 × 379,259.55
  4. Step 4: Simplify right side
    685,182.51x = 358,600,364,503.39
  5. Step 5: Solve for x
    x = 358,600,364,503.39/685,182.51
  6. Step 6: Final answer
    x = 523,364.74

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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.