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Finding the Fourth Proportional to 297,907.20, 446,871.60 and 87,566.40

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Solution

The fourth proportional to 297,907.20, 446,871.60 and 87,566.40 is: 131,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,907.20 : 446,871.60 = 87,566.40 : x
  2. Step 2: Convert to fraction form
    297,907.20/446,871.60 = 87,566.40/x
  3. Step 3: Cross multiply
    297,907.20x = 446,871.60 × 87,566.40
  4. Step 4: Simplify right side
    297,907.20x = 39,130,937,274.24
  5. Step 5: Solve for x
    x = 39,130,937,274.24/297,907.20
  6. Step 6: Final answer
    x = 131,352.77

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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.