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Finding the Fourth Proportional to 545,165.40, 818,525.70 and 412,973.40

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Solution

The fourth proportional to 545,165.40, 818,525.70 and 412,973.40 is: 620,049.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,165.40 : 818,525.70 = 412,973.40 : x
  2. Step 2: Convert to fraction form
    545,165.40/818,525.70 = 412,973.40/x
  3. Step 3: Cross multiply
    545,165.40x = 818,525.70 × 412,973.40
  4. Step 4: Simplify right side
    545,165.40x = 338,029,341,316.38
  5. Step 5: Solve for x
    x = 338,029,341,316.38/545,165.40
  6. Step 6: Final answer
    x = 620,049.15

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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.