Home / 644,219.79-965,065.59-524,405.58

Finding the Fourth Proportional to 644,219.79, 965,065.59 and 524,405.58

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Solution

The fourth proportional to 644,219.79, 965,065.59 and 524,405.58 is: 785,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,219.79 : 965,065.59 = 524,405.58 : x
  2. Step 2: Convert to fraction form
    644,219.79/965,065.59 = 524,405.58/x
  3. Step 3: Cross multiply
    644,219.79x = 965,065.59 × 524,405.58
  4. Step 4: Simplify right side
    644,219.79x = 506,085,780,461.99
  5. Step 5: Solve for x
    x = 506,085,780,461.99/644,219.79
  6. Step 6: Final answer
    x = 785,579.38

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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.