Home / 626,626.07-939,787.90-289,342.49

Finding the Fourth Proportional to 626,626.07, 939,787.90 and 289,342.49

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Solution

The fourth proportional to 626,626.07, 939,787.90 and 289,342.49 is: 433,943.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,626.07 : 939,787.90 = 289,342.49 : x
  2. Step 2: Convert to fraction form
    626,626.07/939,787.90 = 289,342.49/x
  3. Step 3: Cross multiply
    626,626.07x = 939,787.90 × 289,342.49
  4. Step 4: Simplify right side
    626,626.07x = 271,920,573,260.68
  5. Step 5: Solve for x
    x = 271,920,573,260.68/626,626.07
  6. Step 6: Final answer
    x = 433,943.92

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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.