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Finding the Fourth Proportional to 453,903.40, 679,688.70 and 334,930.60

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Solution

The fourth proportional to 453,903.40, 679,688.70 and 334,930.60 is: 501,535.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,903.40 : 679,688.70 = 334,930.60 : x
  2. Step 2: Convert to fraction form
    453,903.40/679,688.70 = 334,930.60/x
  3. Step 3: Cross multiply
    453,903.40x = 679,688.70 × 334,930.60
  4. Step 4: Simplify right side
    453,903.40x = 227,648,544,104.22
  5. Step 5: Solve for x
    x = 227,648,544,104.22/453,903.40
  6. Step 6: Final answer
    x = 501,535.23

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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.