Home / 1,685,904.28-2,326,547.82-921,958.36

Finding the Fourth Proportional to 1,685,904.28, 2,326,547.82 and 921,958.36

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Solution

The fourth proportional to 1,685,904.28, 2,326,547.82 and 921,958.36 is: 1,272,302.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685,904.28 : 2,326,547.82 = 921,958.36 : x
  2. Step 2: Convert to fraction form
    1,685,904.28/2,326,547.82 = 921,958.36/x
  3. Step 3: Cross multiply
    1,685,904.28x = 2,326,547.82 × 921,958.36
  4. Step 4: Simplify right side
    1,685,904.28x = 2,144,980,212,588.78
  5. Step 5: Solve for x
    x = 2,144,980,212,588.78/1,685,904.28
  6. Step 6: Final answer
    x = 1,272,302.49

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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.