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Finding the Fourth Proportional to 317,520.96, 438,219.36 and 183,384.96

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Solution

The fourth proportional to 317,520.96, 438,219.36 and 183,384.96 is: 253,094.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,520.96 : 438,219.36 = 183,384.96 : x
  2. Step 2: Convert to fraction form
    317,520.96/438,219.36 = 183,384.96/x
  3. Step 3: Cross multiply
    317,520.96x = 438,219.36 × 183,384.96
  4. Step 4: Simplify right side
    317,520.96x = 80,362,839,804.83
  5. Step 5: Solve for x
    x = 80,362,839,804.83/317,520.96
  6. Step 6: Final answer
    x = 253,094.60

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1.5x scale

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.