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Finding the Fourth Proportional to 464,307.12, 640,750.51 and 270,709.43

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Solution

The fourth proportional to 464,307.12, 640,750.51 and 270,709.43 is: 373,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,307.12 : 640,750.51 = 270,709.43 : x
  2. Step 2: Convert to fraction form
    464,307.12/640,750.51 = 270,709.43/x
  3. Step 3: Cross multiply
    464,307.12x = 640,750.51 × 270,709.43
  4. Step 4: Simplify right side
    464,307.12x = 173,457,205,334.31
  5. Step 5: Solve for x
    x = 173,457,205,334.31/464,307.12
  6. Step 6: Final answer
    x = 373,582.91

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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.