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Finding the Fourth Proportional to 440,678.87, 608,322.88 and 297,632.67

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Solution

The fourth proportional to 440,678.87, 608,322.88 and 297,632.67 is: 410,858.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,678.87 : 608,322.88 = 297,632.67 : x
  2. Step 2: Convert to fraction form
    440,678.87/608,322.88 = 297,632.67/x
  3. Step 3: Cross multiply
    440,678.87x = 608,322.88 × 297,632.67
  4. Step 4: Simplify right side
    440,678.87x = 181,056,762,996.49
  5. Step 5: Solve for x
    x = 181,056,762,996.49/440,678.87
  6. Step 6: Final answer
    x = 410,858.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.