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Finding the Fourth Proportional to 318,597.34, 477,880.17 and 118,902.46

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Solution

The fourth proportional to 318,597.34, 477,880.17 and 118,902.46 is: 178,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,597.34 : 477,880.17 = 118,902.46 : x
  2. Step 2: Convert to fraction form
    318,597.34/477,880.17 = 118,902.46/x
  3. Step 3: Cross multiply
    318,597.34x = 477,880.17 × 118,902.46
  4. Step 4: Simplify right side
    318,597.34x = 56,821,127,798.22
  5. Step 5: Solve for x
    x = 56,821,127,798.22/318,597.34
  6. Step 6: Final answer
    x = 178,347.78

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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.