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Finding the Fourth Proportional to 464,894.22, 640,826.19 and 303,668.58

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Solution

The fourth proportional to 464,894.22, 640,826.19 and 303,668.58 is: 418,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,894.22 : 640,826.19 = 303,668.58 : x
  2. Step 2: Convert to fraction form
    464,894.22/640,826.19 = 303,668.58/x
  3. Step 3: Cross multiply
    464,894.22x = 640,826.19 × 303,668.58
  4. Step 4: Simplify right side
    464,894.22x = 194,598,779,144.11
  5. Step 5: Solve for x
    x = 194,598,779,144.11/464,894.22
  6. Step 6: Final answer
    x = 418,587.22

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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.