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Finding the Fourth Proportional to 353,766.80, 529,872.60 and 314,368.40

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Solution

The fourth proportional to 353,766.80, 529,872.60 and 314,368.40 is: 470,861.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,766.80 : 529,872.60 = 314,368.40 : x
  2. Step 2: Convert to fraction form
    353,766.80/529,872.60 = 314,368.40/x
  3. Step 3: Cross multiply
    353,766.80x = 529,872.60 × 314,368.40
  4. Step 4: Simplify right side
    353,766.80x = 166,575,201,465.84
  5. Step 5: Solve for x
    x = 166,575,201,465.84/353,766.80
  6. Step 6: Final answer
    x = 470,861.60

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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.