Home / 451,861.06-623,056.98-288,298.72

Finding the Fourth Proportional to 451,861.06, 623,056.98 and 288,298.72

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Solution

The fourth proportional to 451,861.06, 623,056.98 and 288,298.72 is: 397,526.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,861.06 : 623,056.98 = 288,298.72 : x
  2. Step 2: Convert to fraction form
    451,861.06/623,056.98 = 288,298.72/x
  3. Step 3: Cross multiply
    451,861.06x = 623,056.98 × 288,298.72
  4. Step 4: Simplify right side
    451,861.06x = 179,626,529,821.07
  5. Step 5: Solve for x
    x = 179,626,529,821.07/451,861.06
  6. Step 6: Final answer
    x = 397,526.02

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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.