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Finding the Fourth Proportional to 545,851.80, 818,777.70 and 346,397.40

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Solution

The fourth proportional to 545,851.80, 818,777.70 and 346,397.40 is: 519,596.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,851.80 : 818,777.70 = 346,397.40 : x
  2. Step 2: Convert to fraction form
    545,851.80/818,777.70 = 346,397.40/x
  3. Step 3: Cross multiply
    545,851.80x = 818,777.70 × 346,397.40
  4. Step 4: Simplify right side
    545,851.80x = 283,622,466,457.98
  5. Step 5: Solve for x
    x = 283,622,466,457.98/545,851.80
  6. Step 6: Final answer
    x = 519,596.10

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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.