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Finding the Fourth Proportional to 415,152.40, 622,728.60 and 332,208.40

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Solution

The fourth proportional to 415,152.40, 622,728.60 and 332,208.40 is: 498,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,152.40 : 622,728.60 = 332,208.40 : x
  2. Step 2: Convert to fraction form
    415,152.40/622,728.60 = 332,208.40/x
  3. Step 3: Cross multiply
    415,152.40x = 622,728.60 × 332,208.40
  4. Step 4: Simplify right side
    415,152.40x = 206,875,671,840.24
  5. Step 5: Solve for x
    x = 206,875,671,840.24/415,152.40
  6. Step 6: Final answer
    x = 498,312.60

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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.