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Finding the Fourth Proportional to 459,617.80, 634,013.48 and 275,808.80

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Solution

The fourth proportional to 459,617.80, 634,013.48 and 275,808.80 is: 380,460.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,617.80 : 634,013.48 = 275,808.80 : x
  2. Step 2: Convert to fraction form
    459,617.80/634,013.48 = 275,808.80/x
  3. Step 3: Cross multiply
    459,617.80x = 634,013.48 × 275,808.80
  4. Step 4: Simplify right side
    459,617.80x = 174,866,497,102.62
  5. Step 5: Solve for x
    x = 174,866,497,102.62/459,617.80
  6. Step 6: Final answer
    x = 380,460.67

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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.