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Finding the Fourth Proportional to 935,800.80, 1,401,076.80 and 909,556.80

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Solution

The fourth proportional to 935,800.80, 1,401,076.80 and 909,556.80 is: 1,361,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,800.80 : 1,401,076.80 = 909,556.80 : x
  2. Step 2: Convert to fraction form
    935,800.80/1,401,076.80 = 909,556.80/x
  3. Step 3: Cross multiply
    935,800.80x = 1,401,076.80 × 909,556.80
  4. Step 4: Simplify right side
    935,800.80x = 1,274,358,930,762.24
  5. Step 5: Solve for x
    x = 1,274,358,930,762.24/935,800.80
  6. Step 6: Final answer
    x = 1,361,784.40

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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.