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Finding the Fourth Proportional to 340,038.98, 469,286.90 and 253,848.29

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Solution

The fourth proportional to 340,038.98, 469,286.90 and 253,848.29 is: 350,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,038.98 : 469,286.90 = 253,848.29 : x
  2. Step 2: Convert to fraction form
    340,038.98/469,286.90 = 253,848.29/x
  3. Step 3: Cross multiply
    340,038.98x = 469,286.90 × 253,848.29
  4. Step 4: Simplify right side
    340,038.98x = 119,127,678,892.24
  5. Step 5: Solve for x
    x = 119,127,678,892.24/340,038.98
  6. Step 6: Final answer
    x = 350,335.37

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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.