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Finding the Fourth Proportional to 575,082.40, 793,606.80 and 320,432.80

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Solution

The fourth proportional to 575,082.40, 793,606.80 and 320,432.80 is: 442,193.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,082.40 : 793,606.80 = 320,432.80 : x
  2. Step 2: Convert to fraction form
    575,082.40/793,606.80 = 320,432.80/x
  3. Step 3: Cross multiply
    575,082.40x = 793,606.80 × 320,432.80
  4. Step 4: Simplify right side
    575,082.40x = 254,297,649,023.04
  5. Step 5: Solve for x
    x = 254,297,649,023.04/575,082.40
  6. Step 6: Final answer
    x = 442,193.41

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1.5x scale

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.