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Finding the Fourth Proportional to 826,548.40, 1,237,457.40 and 508,866.40

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Solution

The fourth proportional to 826,548.40, 1,237,457.40 and 508,866.40 is: 761,843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,548.40 : 1,237,457.40 = 508,866.40 : x
  2. Step 2: Convert to fraction form
    826,548.40/1,237,457.40 = 508,866.40/x
  3. Step 3: Cross multiply
    826,548.40x = 1,237,457.40 × 508,866.40
  4. Step 4: Simplify right side
    826,548.40x = 629,700,492,291.36
  5. Step 5: Solve for x
    x = 629,700,492,291.36/826,548.40
  6. Step 6: Final answer
    x = 761,843.46

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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.