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Finding the Fourth Proportional to 463,955.04, 640,227.65 and 272,931.53

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Solution

The fourth proportional to 463,955.04, 640,227.65 and 272,931.53 is: 376,627.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,955.04 : 640,227.65 = 272,931.53 : x
  2. Step 2: Convert to fraction form
    463,955.04/640,227.65 = 272,931.53/x
  3. Step 3: Cross multiply
    463,955.04x = 640,227.65 × 272,931.53
  4. Step 4: Simplify right side
    463,955.04x = 174,738,307,497.01
  5. Step 5: Solve for x
    x = 174,738,307,497.01/463,955.04
  6. Step 6: Final answer
    x = 376,627.67

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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.