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Finding the Fourth Proportional to 656,914.40, 985,141.20 and 341,266.40

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Solution

The fourth proportional to 656,914.40, 985,141.20 and 341,266.40 is: 511,779.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,914.40 : 985,141.20 = 341,266.40 : x
  2. Step 2: Convert to fraction form
    656,914.40/985,141.20 = 341,266.40/x
  3. Step 3: Cross multiply
    656,914.40x = 985,141.20 × 341,266.40
  4. Step 4: Simplify right side
    656,914.40x = 336,195,590,815.68
  5. Step 5: Solve for x
    x = 336,195,590,815.68/656,914.40
  6. Step 6: Final answer
    x = 511,779.91

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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.