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Finding the Fourth Proportional to 469,916.40, 704,485.80 and 248,300.40

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Solution

The fourth proportional to 469,916.40, 704,485.80 and 248,300.40 is: 372,245.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,916.40 : 704,485.80 = 248,300.40 : x
  2. Step 2: Convert to fraction form
    469,916.40/704,485.80 = 248,300.40/x
  3. Step 3: Cross multiply
    469,916.40x = 704,485.80 × 248,300.40
  4. Step 4: Simplify right side
    469,916.40x = 174,924,105,934.32
  5. Step 5: Solve for x
    x = 174,924,105,934.32/469,916.40
  6. Step 6: Final answer
    x = 372,245.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.