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Finding the Fourth Proportional to 648,900.63, 895,535.01 and 358,537.50

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Solution

The fourth proportional to 648,900.63, 895,535.01 and 358,537.50 is: 494,810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,900.63 : 895,535.01 = 358,537.50 : x
  2. Step 2: Convert to fraction form
    648,900.63/895,535.01 = 358,537.50/x
  3. Step 3: Cross multiply
    648,900.63x = 895,535.01 × 358,537.50
  4. Step 4: Simplify right side
    648,900.63x = 321,082,883,647.88
  5. Step 5: Solve for x
    x = 321,082,883,647.88/648,900.63
  6. Step 6: Final answer
    x = 494,810.56

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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.