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Finding the Fourth Proportional to 519,321, 716,662.98 and 368,680.44

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Solution

The fourth proportional to 519,321, 716,662.98 and 368,680.44 is: 508,779.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,321 : 716,662.98 = 368,680.44 : x
  2. Step 2: Convert to fraction form
    519,321/716,662.98 = 368,680.44/x
  3. Step 3: Cross multiply
    519,321x = 716,662.98 × 368,680.44
  4. Step 4: Simplify right side
    519,321x = 264,219,622,798.11
  5. Step 5: Solve for x
    x = 264,219,622,798.11/519,321
  6. Step 6: Final answer
    x = 508,779.01

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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.