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Finding the Fourth Proportional to 517,492.50, 776,194.28 and 315,036.06

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Solution

The fourth proportional to 517,492.50, 776,194.28 and 315,036.06 is: 472,527.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,492.50 : 776,194.28 = 315,036.06 : x
  2. Step 2: Convert to fraction form
    517,492.50/776,194.28 = 315,036.06/x
  3. Step 3: Cross multiply
    517,492.50x = 776,194.28 × 315,036.06
  4. Step 4: Simplify right side
    517,492.50x = 244,529,183,884.77
  5. Step 5: Solve for x
    x = 244,529,183,884.77/517,492.50
  6. Step 6: Final answer
    x = 472,527.01

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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.