Home / 939,336.96-1,409,173.92-440,688

Finding the Fourth Proportional to 939,336.96, 1,409,173.92 and 440,688

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Solution

The fourth proportional to 939,336.96, 1,409,173.92 and 440,688 is: 661,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,336.96 : 1,409,173.92 = 440,688 : x
  2. Step 2: Convert to fraction form
    939,336.96/1,409,173.92 = 440,688/x
  3. Step 3: Cross multiply
    939,336.96x = 1,409,173.92 × 440,688
  4. Step 4: Simplify right side
    939,336.96x = 621,006,036,456.96
  5. Step 5: Solve for x
    x = 621,006,036,456.96/939,336.96
  6. Step 6: Final answer
    x = 661,111.04

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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.