Home / 679,140.25-938,000.88-452,392.09

Finding the Fourth Proportional to 679,140.25, 938,000.88 and 452,392.09

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Solution

The fourth proportional to 679,140.25, 938,000.88 and 452,392.09 is: 624,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,140.25 : 938,000.88 = 452,392.09 : x
  2. Step 2: Convert to fraction form
    679,140.25/938,000.88 = 452,392.09/x
  3. Step 3: Cross multiply
    679,140.25x = 938,000.88 × 452,392.09
  4. Step 4: Simplify right side
    679,140.25x = 424,344,178,525.04
  5. Step 5: Solve for x
    x = 424,344,178,525.04/679,140.25
  6. Step 6: Final answer
    x = 624,825.55

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1.5x scale

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.