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Finding the Fourth Proportional to 4,880,779.58, 6,731,978.36 and 3,225,008.90

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Solution

The fourth proportional to 4,880,779.58, 6,731,978.36 and 3,225,008.90 is: 4,448,201.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880,779.58 : 6,731,978.36 = 3,225,008.90 : x
  2. Step 2: Convert to fraction form
    4,880,779.58/6,731,978.36 = 3,225,008.90/x
  3. Step 3: Cross multiply
    4,880,779.58x = 6,731,978.36 × 3,225,008.90
  4. Step 4: Simplify right side
    4,880,779.58x = 21,710,690,125,607.41
  5. Step 5: Solve for x
    x = 21,710,690,125,607.41/4,880,779.58
  6. Step 6: Final answer
    x = 4,448,201.31

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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.