Home / 628,114.02-866,511.45-373,320.42

Finding the Fourth Proportional to 628,114.02, 866,511.45 and 373,320.42

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Solution

The fourth proportional to 628,114.02, 866,511.45 and 373,320.42 is: 515,012.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,114.02 : 866,511.45 = 373,320.42 : x
  2. Step 2: Convert to fraction form
    628,114.02/866,511.45 = 373,320.42/x
  3. Step 3: Cross multiply
    628,114.02x = 866,511.45 × 373,320.42
  4. Step 4: Simplify right side
    628,114.02x = 323,486,418,448.81
  5. Step 5: Solve for x
    x = 323,486,418,448.81/628,114.02
  6. Step 6: Final answer
    x = 515,012.26

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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.