Home / 1,685,818.75-2,326,428.87-921,872.32

Finding the Fourth Proportional to 1,685,818.75, 2,326,428.87 and 921,872.32

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Solution

The fourth proportional to 1,685,818.75, 2,326,428.87 and 921,872.32 is: 1,272,183.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,818.75 : 2,326,428.87 = 921,872.32 : x
  2. Step 2: Convert to fraction form
    1,685,818.75/2,326,428.87 = 921,872.32/x
  3. Step 3: Cross multiply
    1,685,818.75x = 2,326,428.87 × 921,872.32
  4. Step 4: Simplify right side
    1,685,818.75x = 2,144,670,379,701.88
  5. Step 5: Solve for x
    x = 2,144,670,379,701.88/1,685,818.75
  6. Step 6: Final answer
    x = 1,272,183.25

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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.