Home / 939,220.70-1,409,608.65-434,558.30

Finding the Fourth Proportional to 939,220.70, 1,409,608.65 and 434,558.30

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Solution

The fourth proportional to 939,220.70, 1,409,608.65 and 434,558.30 is: 652,197.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,220.70 : 1,409,608.65 = 434,558.30 : x
  2. Step 2: Convert to fraction form
    939,220.70/1,409,608.65 = 434,558.30/x
  3. Step 3: Cross multiply
    939,220.70x = 1,409,608.65 × 434,558.30
  4. Step 4: Simplify right side
    939,220.70x = 612,557,138,609.30
  5. Step 5: Solve for x
    x = 612,557,138,609.30/939,220.70
  6. Step 6: Final answer
    x = 652,197.23

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1.5x scale

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.