Home / 626,640.20-939,960.30-558,405.80

Finding the Fourth Proportional to 626,640.20, 939,960.30 and 558,405.80

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Solution

The fourth proportional to 626,640.20, 939,960.30 and 558,405.80 is: 837,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,640.20 : 939,960.30 = 558,405.80 : x
  2. Step 2: Convert to fraction form
    626,640.20/939,960.30 = 558,405.80/x
  3. Step 3: Cross multiply
    626,640.20x = 939,960.30 × 558,405.80
  4. Step 4: Simplify right side
    626,640.20x = 524,879,283,289.74
  5. Step 5: Solve for x
    x = 524,879,283,289.74/626,640.20
  6. Step 6: Final answer
    x = 837,608.70

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1.5x scale

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.