Home / 479,457.60-719,186.40-198,899.52

Finding the Fourth Proportional to 479,457.60, 719,186.40 and 198,899.52

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Solution

The fourth proportional to 479,457.60, 719,186.40 and 198,899.52 is: 298,349.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,457.60 : 719,186.40 = 198,899.52 : x
  2. Step 2: Convert to fraction form
    479,457.60/719,186.40 = 198,899.52/x
  3. Step 3: Cross multiply
    479,457.60x = 719,186.40 × 198,899.52
  4. Step 4: Simplify right side
    479,457.60x = 143,045,829,750.53
  5. Step 5: Solve for x
    x = 143,045,829,750.53/479,457.60
  6. Step 6: Final answer
    x = 298,349.28

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Double scale
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Similar ratio
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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.