Home / 619,166.81-854,087.54-389,360.49

Finding the Fourth Proportional to 619,166.81, 854,087.54 and 389,360.49

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Solution

The fourth proportional to 619,166.81, 854,087.54 and 389,360.49 is: 537,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,166.81 : 854,087.54 = 389,360.49 : x
  2. Step 2: Convert to fraction form
    619,166.81/854,087.54 = 389,360.49/x
  3. Step 3: Cross multiply
    619,166.81x = 854,087.54 × 389,360.49
  4. Step 4: Simplify right side
    619,166.81x = 332,547,941,130.49
  5. Step 5: Solve for x
    x = 332,547,941,130.49/619,166.81
  6. Step 6: Final answer
    x = 537,089.42

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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.