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Finding the Fourth Proportional to 545,548.80, 818,323.20 and 346,094.40

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Solution

The fourth proportional to 545,548.80, 818,323.20 and 346,094.40 is: 519,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,548.80 : 818,323.20 = 346,094.40 : x
  2. Step 2: Convert to fraction form
    545,548.80/818,323.20 = 346,094.40/x
  3. Step 3: Cross multiply
    545,548.80x = 818,323.20 × 346,094.40
  4. Step 4: Simplify right side
    545,548.80x = 283,217,076,910.08
  5. Step 5: Solve for x
    x = 283,217,076,910.08/545,548.80
  6. Step 6: Final answer
    x = 519,141.60

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Similar ratio
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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.