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Finding the Fourth Proportional to 386,185.22, 578,523.70 and 183,492.88

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Solution

The fourth proportional to 386,185.22, 578,523.70 and 183,492.88 is: 274,881.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,185.22 : 578,523.70 = 183,492.88 : x
  2. Step 2: Convert to fraction form
    386,185.22/578,523.70 = 183,492.88/x
  3. Step 3: Cross multiply
    386,185.22x = 578,523.70 × 183,492.88
  4. Step 4: Simplify right side
    386,185.22x = 106,154,979,861.26
  5. Step 5: Solve for x
    x = 106,154,979,861.26/386,185.22
  6. Step 6: Final answer
    x = 274,881.00

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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.