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Finding the Fourth Proportional to 578,362.88, 798,150.65 and 316,741.19

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Solution

The fourth proportional to 578,362.88, 798,150.65 and 316,741.19 is: 437,108.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,362.88 : 798,150.65 = 316,741.19 : x
  2. Step 2: Convert to fraction form
    578,362.88/798,150.65 = 316,741.19/x
  3. Step 3: Cross multiply
    578,362.88x = 798,150.65 × 316,741.19
  4. Step 4: Simplify right side
    578,362.88x = 252,807,181,105.81
  5. Step 5: Solve for x
    x = 252,807,181,105.81/578,362.88
  6. Step 6: Final answer
    x = 437,108.24

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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.