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Finding the Fourth Proportional to 556,068.66, 768,012.48 and 365,930.88

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Solution

The fourth proportional to 556,068.66, 768,012.48 and 365,930.88 is: 505,404.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,068.66 : 768,012.48 = 365,930.88 : x
  2. Step 2: Convert to fraction form
    556,068.66/768,012.48 = 365,930.88/x
  3. Step 3: Cross multiply
    556,068.66x = 768,012.48 × 365,930.88
  4. Step 4: Simplify right side
    556,068.66x = 281,039,482,657.38
  5. Step 5: Solve for x
    x = 281,039,482,657.38/556,068.66
  6. Step 6: Final answer
    x = 505,404.28

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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.