Home / 626,419.26-864,030.51-399,962.70

Finding the Fourth Proportional to 626,419.26, 864,030.51 and 399,962.70

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Solution

The fourth proportional to 626,419.26, 864,030.51 and 399,962.70 is: 551,675.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,419.26 : 864,030.51 = 399,962.70 : x
  2. Step 2: Convert to fraction form
    626,419.26/864,030.51 = 399,962.70/x
  3. Step 3: Cross multiply
    626,419.26x = 864,030.51 × 399,962.70
  4. Step 4: Simplify right side
    626,419.26x = 345,579,975,661.98
  5. Step 5: Solve for x
    x = 345,579,975,661.98/626,419.26
  6. Step 6: Final answer
    x = 551,675.21

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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.