Home / 1,228,665.51-1,695,182.67-712,316.37

Finding the Fourth Proportional to 1,228,665.51, 1,695,182.67 and 712,316.37

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Solution

The fourth proportional to 1,228,665.51, 1,695,182.67 and 712,316.37 is: 982,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,665.51 : 1,695,182.67 = 712,316.37 : x
  2. Step 2: Convert to fraction form
    1,228,665.51/1,695,182.67 = 712,316.37/x
  3. Step 3: Cross multiply
    1,228,665.51x = 1,695,182.67 × 712,316.37
  4. Step 4: Simplify right side
    1,228,665.51x = 1,207,506,372,545.29
  5. Step 5: Solve for x
    x = 1,207,506,372,545.29/1,228,665.51
  6. Step 6: Final answer
    x = 982,778.77

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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.