Home / 1,685,818.51-2,326,428.53-921,872.07

Finding the Fourth Proportional to 1,685,818.51, 2,326,428.53 and 921,872.07

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Solution

The fourth proportional to 1,685,818.51, 2,326,428.53 and 921,872.07 is: 1,272,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,818.51 : 2,326,428.53 = 921,872.07 : x
  2. Step 2: Convert to fraction form
    1,685,818.51/2,326,428.53 = 921,872.07/x
  3. Step 3: Cross multiply
    1,685,818.51x = 2,326,428.53 × 921,872.07
  4. Step 4: Simplify right side
    1,685,818.51x = 2,144,669,468,416.65
  5. Step 5: Solve for x
    x = 2,144,669,468,416.65/1,685,818.51
  6. Step 6: Final answer
    x = 1,272,182.90

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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.