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Finding the Fourth Proportional to 876,650.70, 1,314,068.85 and 476,445.90

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Solution

The fourth proportional to 876,650.70, 1,314,068.85 and 476,445.90 is: 714,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,650.70 : 1,314,068.85 = 476,445.90 : x
  2. Step 2: Convert to fraction form
    876,650.70/1,314,068.85 = 476,445.90/x
  3. Step 3: Cross multiply
    876,650.70x = 1,314,068.85 × 476,445.90
  4. Step 4: Simplify right side
    876,650.70x = 626,082,715,900.22
  5. Step 5: Solve for x
    x = 626,082,715,900.22/876,650.70
  6. Step 6: Final answer
    x = 714,175.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.