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Finding the Fourth Proportional to 578,364.51, 798,152.89 and 316,742.81

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Solution

The fourth proportional to 578,364.51, 798,152.89 and 316,742.81 is: 437,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,364.51 : 798,152.89 = 316,742.81 : x
  2. Step 2: Convert to fraction form
    578,364.51/798,152.89 = 316,742.81/x
  3. Step 3: Cross multiply
    578,364.51x = 798,152.89 × 316,742.81
  4. Step 4: Simplify right side
    578,364.51x = 252,809,189,188.22
  5. Step 5: Solve for x
    x = 252,809,189,188.22/578,364.51
  6. Step 6: Final answer
    x = 437,110.48

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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.