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Finding the Fourth Proportional to 614,917.32, 848,583.72 and 342,985

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Solution

The fourth proportional to 614,917.32, 848,583.72 and 342,985 is: 473,318.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,917.32 : 848,583.72 = 342,985 : x
  2. Step 2: Convert to fraction form
    614,917.32/848,583.72 = 342,985/x
  3. Step 3: Cross multiply
    614,917.32x = 848,583.72 × 342,985
  4. Step 4: Simplify right side
    614,917.32x = 291,051,487,204.20
  5. Step 5: Solve for x
    x = 291,051,487,204.20/614,917.32
  6. Step 6: Final answer
    x = 473,318.08

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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.