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Finding the Fourth Proportional to 648,598.98, 895,081.12 and 406,891.74

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Solution

The fourth proportional to 648,598.98, 895,081.12 and 406,891.74 is: 561,519.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,598.98 : 895,081.12 = 406,891.74 : x
  2. Step 2: Convert to fraction form
    648,598.98/895,081.12 = 406,891.74/x
  3. Step 3: Cross multiply
    648,598.98x = 895,081.12 × 406,891.74
  4. Step 4: Simplify right side
    648,598.98x = 364,201,114,357.95
  5. Step 5: Solve for x
    x = 364,201,114,357.95/648,598.98
  6. Step 6: Final answer
    x = 561,519.71

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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.