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Finding the Fourth Proportional to 660,043.33, 910,703.68 and 373,563.41

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Solution

The fourth proportional to 660,043.33, 910,703.68 and 373,563.41 is: 515,429.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,043.33 : 910,703.68 = 373,563.41 : x
  2. Step 2: Convert to fraction form
    660,043.33/910,703.68 = 373,563.41/x
  3. Step 3: Cross multiply
    660,043.33x = 910,703.68 × 373,563.41
  4. Step 4: Simplify right side
    660,043.33x = 340,205,565,779.01
  5. Step 5: Solve for x
    x = 340,205,565,779.01/660,043.33
  6. Step 6: Final answer
    x = 515,429.14

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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.