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Finding the Fourth Proportional to 545,166.40, 818,527.20 and 412,974.40

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Solution

The fourth proportional to 545,166.40, 818,527.20 and 412,974.40 is: 620,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,166.40 : 818,527.20 = 412,974.40 : x
  2. Step 2: Convert to fraction form
    545,166.40/818,527.20 = 412,974.40/x
  3. Step 3: Cross multiply
    545,166.40x = 818,527.20 × 412,974.40
  4. Step 4: Simplify right side
    545,166.40x = 338,030,779,303.68
  5. Step 5: Solve for x
    x = 338,030,779,303.68/545,166.40
  6. Step 6: Final answer
    x = 620,050.65

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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.