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Finding the Fourth Proportional to 463,838.40, 640,094.40 and 262,634.40

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Solution

The fourth proportional to 463,838.40, 640,094.40 and 262,634.40 is: 362,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,838.40 : 640,094.40 = 262,634.40 : x
  2. Step 2: Convert to fraction form
    463,838.40/640,094.40 = 262,634.40/x
  3. Step 3: Cross multiply
    463,838.40x = 640,094.40 × 262,634.40
  4. Step 4: Simplify right side
    463,838.40x = 168,110,808,687.36
  5. Step 5: Solve for x
    x = 168,110,808,687.36/463,838.40
  6. Step 6: Final answer
    x = 362,434.00

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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.