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Finding the Fourth Proportional to 559,368.56, 771,929.93 and 304,714.28

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Solution

The fourth proportional to 559,368.56, 771,929.93 and 304,714.28 is: 420,506.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,368.56 : 771,929.93 = 304,714.28 : x
  2. Step 2: Convert to fraction form
    559,368.56/771,929.93 = 304,714.28/x
  3. Step 3: Cross multiply
    559,368.56x = 771,929.93 × 304,714.28
  4. Step 4: Simplify right side
    559,368.56x = 235,218,072,830.40
  5. Step 5: Solve for x
    x = 235,218,072,830.40/559,368.56
  6. Step 6: Final answer
    x = 420,506.42

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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.