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Finding the Fourth Proportional to 405,000.20, 607,673.10 and 194,529.80

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Solution

The fourth proportional to 405,000.20, 607,673.10 and 194,529.80 is: 291,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,000.20 : 607,673.10 = 194,529.80 : x
  2. Step 2: Convert to fraction form
    405,000.20/607,673.10 = 194,529.80/x
  3. Step 3: Cross multiply
    405,000.20x = 607,673.10 × 194,529.80
  4. Step 4: Simplify right side
    405,000.20x = 118,210,526,608.38
  5. Step 5: Solve for x
    x = 118,210,526,608.38/405,000.20
  6. Step 6: Final answer
    x = 291,877.70

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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.