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Finding the Fourth Proportional to 382,679.40, 574,019.10 and 242,596.20

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Solution

The fourth proportional to 382,679.40, 574,019.10 and 242,596.20 is: 363,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,679.40 : 574,019.10 = 242,596.20 : x
  2. Step 2: Convert to fraction form
    382,679.40/574,019.10 = 242,596.20/x
  3. Step 3: Cross multiply
    382,679.40x = 574,019.10 × 242,596.20
  4. Step 4: Simplify right side
    382,679.40x = 139,254,852,387.42
  5. Step 5: Solve for x
    x = 139,254,852,387.42/382,679.40
  6. Step 6: Final answer
    x = 363,894.30

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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.