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Finding the Fourth Proportional to 506,915.25, 699,495.56 and 302,925.56

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Solution

The fourth proportional to 506,915.25, 699,495.56 and 302,925.56 is: 418,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,915.25 : 699,495.56 = 302,925.56 : x
  2. Step 2: Convert to fraction form
    506,915.25/699,495.56 = 302,925.56/x
  3. Step 3: Cross multiply
    506,915.25x = 699,495.56 × 302,925.56
  4. Step 4: Simplify right side
    506,915.25x = 211,895,084,230.51
  5. Step 5: Solve for x
    x = 211,895,084,230.51/506,915.25
  6. Step 6: Final answer
    x = 418,008.90

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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.