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Finding the Fourth Proportional to 434,492.40, 651,738.60 and 376,172.40

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Solution

The fourth proportional to 434,492.40, 651,738.60 and 376,172.40 is: 564,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,492.40 : 651,738.60 = 376,172.40 : x
  2. Step 2: Convert to fraction form
    434,492.40/651,738.60 = 376,172.40/x
  3. Step 3: Cross multiply
    434,492.40x = 651,738.60 × 376,172.40
  4. Step 4: Simplify right side
    434,492.40x = 245,166,073,334.64
  5. Step 5: Solve for x
    x = 245,166,073,334.64/434,492.40
  6. Step 6: Final answer
    x = 564,258.60

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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.