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Finding the Fourth Proportional to 351,245.40, 525,312.90 and 295,258.20

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Solution

The fourth proportional to 351,245.40, 525,312.90 and 295,258.20 is: 441,579.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,245.40 : 525,312.90 = 295,258.20 : x
  2. Step 2: Convert to fraction form
    351,245.40/525,312.90 = 295,258.20/x
  3. Step 3: Cross multiply
    351,245.40x = 525,312.90 × 295,258.20
  4. Step 4: Simplify right side
    351,245.40x = 155,102,941,290.78
  5. Step 5: Solve for x
    x = 155,102,941,290.78/351,245.40
  6. Step 6: Final answer
    x = 441,579.99

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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.