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Finding the Fourth Proportional to 615,736.40, 923,604.60 and 416,152.40

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Solution

The fourth proportional to 615,736.40, 923,604.60 and 416,152.40 is: 624,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,736.40 : 923,604.60 = 416,152.40 : x
  2. Step 2: Convert to fraction form
    615,736.40/923,604.60 = 416,152.40/x
  3. Step 3: Cross multiply
    615,736.40x = 923,604.60 × 416,152.40
  4. Step 4: Simplify right side
    615,736.40x = 384,360,270,941.04
  5. Step 5: Solve for x
    x = 384,360,270,941.04/615,736.40
  6. Step 6: Final answer
    x = 624,228.60

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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.