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Finding the Fourth Proportional to 553,946.18, 763,938.34 and 363,064.82

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Solution

The fourth proportional to 553,946.18, 763,938.34 and 363,064.82 is: 500,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,946.18 : 763,938.34 = 363,064.82 : x
  2. Step 2: Convert to fraction form
    553,946.18/763,938.34 = 363,064.82/x
  3. Step 3: Cross multiply
    553,946.18x = 763,938.34 × 363,064.82
  4. Step 4: Simplify right side
    553,946.18x = 277,359,131,175.85
  5. Step 5: Solve for x
    x = 277,359,131,175.85/553,946.18
  6. Step 6: Final answer
    x = 500,696.90

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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.