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Finding the Fourth Proportional to 545,566.35, 818,237.74 and 343,069.59

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Solution

The fourth proportional to 545,566.35, 818,237.74 and 343,069.59 is: 514,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,566.35 : 818,237.74 = 343,069.59 : x
  2. Step 2: Convert to fraction form
    545,566.35/818,237.74 = 343,069.59/x
  3. Step 3: Cross multiply
    545,566.35x = 818,237.74 × 343,069.59
  4. Step 4: Simplify right side
    545,566.35x = 280,712,485,984.33
  5. Step 5: Solve for x
    x = 280,712,485,984.33/545,566.35
  6. Step 6: Final answer
    x = 514,534.09

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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.