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Finding the Fourth Proportional to 479,392.09, 719,362.89 and 195,030.16

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Solution

The fourth proportional to 479,392.09, 719,362.89 and 195,030.16 is: 292,657.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,392.09 : 719,362.89 = 195,030.16 : x
  2. Step 2: Convert to fraction form
    479,392.09/719,362.89 = 195,030.16/x
  3. Step 3: Cross multiply
    479,392.09x = 719,362.89 × 195,030.16
  4. Step 4: Simplify right side
    479,392.09x = 140,297,459,534.76
  5. Step 5: Solve for x
    x = 140,297,459,534.76/479,392.09
  6. Step 6: Final answer
    x = 292,657.02

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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.