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Finding the Fourth Proportional to 464,495.55, 640,263.06 and 349,601.46

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Solution

The fourth proportional to 464,495.55, 640,263.06 and 349,601.46 is: 481,892.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,495.55 : 640,263.06 = 349,601.46 : x
  2. Step 2: Convert to fraction form
    464,495.55/640,263.06 = 349,601.46/x
  3. Step 3: Cross multiply
    464,495.55x = 640,263.06 × 349,601.46
  4. Step 4: Simplify right side
    464,495.55x = 223,836,900,560.07
  5. Step 5: Solve for x
    x = 223,836,900,560.07/464,495.55
  6. Step 6: Final answer
    x = 481,892.45

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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.