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Finding the Fourth Proportional to 3,281,579.06, 4,922,368.61 and 885,423.69

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Solution

The fourth proportional to 3,281,579.06, 4,922,368.61 and 885,423.69 is: 1,328,135.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281,579.06 : 4,922,368.61 = 885,423.69 : x
  2. Step 2: Convert to fraction form
    3,281,579.06/4,922,368.61 = 885,423.69/x
  3. Step 3: Cross multiply
    3,281,579.06x = 4,922,368.61 × 885,423.69
  4. Step 4: Simplify right side
    3,281,579.06x = 4,358,381,773,779.25
  5. Step 5: Solve for x
    x = 4,358,381,773,779.25/3,281,579.06
  6. Step 6: Final answer
    x = 1,328,135.54

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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.