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Finding the Fourth Proportional to 637,985.90, 956,104.05 and 519,887.90

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Solution

The fourth proportional to 637,985.90, 956,104.05 and 519,887.90 is: 779,118.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,985.90 : 956,104.05 = 519,887.90 : x
  2. Step 2: Convert to fraction form
    637,985.90/956,104.05 = 519,887.90/x
  3. Step 3: Cross multiply
    637,985.90x = 956,104.05 × 519,887.90
  4. Step 4: Simplify right side
    637,985.90x = 497,066,926,736.00
  5. Step 5: Solve for x
    x = 497,066,926,736.00/637,985.90
  6. Step 6: Final answer
    x = 779,118.98

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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.