Home / 649,279.40-973,256.70-438,938.60

Finding the Fourth Proportional to 649,279.40, 973,256.70 and 438,938.60

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Solution

The fourth proportional to 649,279.40, 973,256.70 and 438,938.60 is: 657,960.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,279.40 : 973,256.70 = 438,938.60 : x
  2. Step 2: Convert to fraction form
    649,279.40/973,256.70 = 438,938.60/x
  3. Step 3: Cross multiply
    649,279.40x = 973,256.70 × 438,938.60
  4. Step 4: Simplify right side
    649,279.40x = 427,199,933,338.62
  5. Step 5: Solve for x
    x = 427,199,933,338.62/649,279.40
  6. Step 6: Final answer
    x = 657,960.09

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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.