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Finding the Fourth Proportional to 264,501.40, 396,752.10 and 260,564.80

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Solution

The fourth proportional to 264,501.40, 396,752.10 and 260,564.80 is: 390,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,501.40 : 396,752.10 = 260,564.80 : x
  2. Step 2: Convert to fraction form
    264,501.40/396,752.10 = 260,564.80/x
  3. Step 3: Cross multiply
    264,501.40x = 396,752.10 × 260,564.80
  4. Step 4: Simplify right side
    264,501.40x = 103,379,631,586.08
  5. Step 5: Solve for x
    x = 103,379,631,586.08/264,501.40
  6. Step 6: Final answer
    x = 390,847.20

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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.