Home / 626,512.20-939,801.08-289,867.28

Finding the Fourth Proportional to 626,512.20, 939,801.08 and 289,867.28

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Solution

The fourth proportional to 626,512.20, 939,801.08 and 289,867.28 is: 434,816.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,512.20 : 939,801.08 = 289,867.28 : x
  2. Step 2: Convert to fraction form
    626,512.20/939,801.08 = 289,867.28/x
  3. Step 3: Cross multiply
    626,512.20x = 939,801.08 × 289,867.28
  4. Step 4: Simplify right side
    626,512.20x = 272,417,582,800.66
  5. Step 5: Solve for x
    x = 272,417,582,800.66/626,512.20
  6. Step 6: Final answer
    x = 434,816.09

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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.