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Finding the Fourth Proportional to 404,856.20, 607,457.10 and 194,385.80

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Solution

The fourth proportional to 404,856.20, 607,457.10 and 194,385.80 is: 291,661.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,856.20 : 607,457.10 = 194,385.80 : x
  2. Step 2: Convert to fraction form
    404,856.20/607,457.10 = 194,385.80/x
  3. Step 3: Cross multiply
    404,856.20x = 607,457.10 × 194,385.80
  4. Step 4: Simplify right side
    404,856.20x = 118,081,034,349.18
  5. Step 5: Solve for x
    x = 118,081,034,349.18/404,856.20
  6. Step 6: Final answer
    x = 291,661.67

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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.