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Finding the Fourth Proportional to 898,598.48, 1,237,958.40 and 626,172

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Solution

The fourth proportional to 898,598.48, 1,237,958.40 and 626,172 is: 862,648.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,598.48 : 1,237,958.40 = 626,172 : x
  2. Step 2: Convert to fraction form
    898,598.48/1,237,958.40 = 626,172/x
  3. Step 3: Cross multiply
    898,598.48x = 1,237,958.40 × 626,172
  4. Step 4: Simplify right side
    898,598.48x = 775,174,887,244.80
  5. Step 5: Solve for x
    x = 775,174,887,244.80/898,598.48
  6. Step 6: Final answer
    x = 862,648.79

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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.