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Finding the Fourth Proportional to 698,959.53, 964,559.21 and 397,153.53

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Solution

The fourth proportional to 698,959.53, 964,559.21 and 397,153.53 is: 548,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,959.53 : 964,559.21 = 397,153.53 : x
  2. Step 2: Convert to fraction form
    698,959.53/964,559.21 = 397,153.53/x
  3. Step 3: Cross multiply
    698,959.53x = 964,559.21 × 397,153.53
  4. Step 4: Simplify right side
    698,959.53x = 383,078,093,159.74
  5. Step 5: Solve for x
    x = 383,078,093,159.74/698,959.53
  6. Step 6: Final answer
    x = 548,069.06

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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.