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Finding the Fourth Proportional to 434,563.40, 651,845.10 and 376,243.40

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Solution

The fourth proportional to 434,563.40, 651,845.10 and 376,243.40 is: 564,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,563.40 : 651,845.10 = 376,243.40 : x
  2. Step 2: Convert to fraction form
    434,563.40/651,845.10 = 376,243.40/x
  3. Step 3: Cross multiply
    434,563.40x = 651,845.10 × 376,243.40
  4. Step 4: Simplify right side
    434,563.40x = 245,252,416,697.34
  5. Step 5: Solve for x
    x = 245,252,416,697.34/434,563.40
  6. Step 6: Final answer
    x = 564,365.10

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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.