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Finding the Fourth Proportional to 2,984,779.71, 4,118,491.71 and 1,677,857.67

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Solution

The fourth proportional to 2,984,779.71, 4,118,491.71 and 1,677,857.67 is: 2,315,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984,779.71 : 4,118,491.71 = 1,677,857.67 : x
  2. Step 2: Convert to fraction form
    2,984,779.71/4,118,491.71 = 1,677,857.67/x
  3. Step 3: Cross multiply
    2,984,779.71x = 4,118,491.71 × 1,677,857.67
  4. Step 4: Simplify right side
    2,984,779.71x = 6,910,242,904,454.92
  5. Step 5: Solve for x
    x = 6,910,242,904,454.92/2,984,779.71
  6. Step 6: Final answer
    x = 2,315,160.10

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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.