Home / 1,328,779.60-1,993,169.40-930,648.40

Finding the Fourth Proportional to 1,328,779.60, 1,993,169.40 and 930,648.40

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Solution

The fourth proportional to 1,328,779.60, 1,993,169.40 and 930,648.40 is: 1,395,972.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,779.60 : 1,993,169.40 = 930,648.40 : x
  2. Step 2: Convert to fraction form
    1,328,779.60/1,993,169.40 = 930,648.40/x
  3. Step 3: Cross multiply
    1,328,779.60x = 1,993,169.40 × 930,648.40
  4. Step 4: Simplify right side
    1,328,779.60x = 1,854,939,913,038.96
  5. Step 5: Solve for x
    x = 1,854,939,913,038.96/1,328,779.60
  6. Step 6: Final answer
    x = 1,395,972.60

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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.