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Finding the Fourth Proportional to 496,535.40, 745,110.90 and 260,047.80

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Solution

The fourth proportional to 496,535.40, 745,110.90 and 260,047.80 is: 390,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,535.40 : 745,110.90 = 260,047.80 : x
  2. Step 2: Convert to fraction form
    496,535.40/745,110.90 = 260,047.80/x
  3. Step 3: Cross multiply
    496,535.40x = 745,110.90 × 260,047.80
  4. Step 4: Simplify right side
    496,535.40x = 193,764,450,301.02
  5. Step 5: Solve for x
    x = 193,764,450,301.02/496,535.40
  6. Step 6: Final answer
    x = 390,232.90

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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.