Home / 656,395.28-899,918.26-644,438.48

Finding the Fourth Proportional to 656,395.28, 899,918.26 and 644,438.48

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Solution

The fourth proportional to 656,395.28, 899,918.26 and 644,438.48 is: 883,525.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,395.28 : 899,918.26 = 644,438.48 : x
  2. Step 2: Convert to fraction form
    656,395.28/899,918.26 = 644,438.48/x
  3. Step 3: Cross multiply
    656,395.28x = 899,918.26 × 644,438.48
  4. Step 4: Simplify right side
    656,395.28x = 579,941,955,598.65
  5. Step 5: Solve for x
    x = 579,941,955,598.65/656,395.28
  6. Step 6: Final answer
    x = 883,525.48

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.