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Finding the Fourth Proportional to 545,549.80, 818,324.70 and 346,095.40

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Solution

The fourth proportional to 545,549.80, 818,324.70 and 346,095.40 is: 519,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,549.80 : 818,324.70 = 346,095.40 : x
  2. Step 2: Convert to fraction form
    545,549.80/818,324.70 = 346,095.40/x
  3. Step 3: Cross multiply
    545,549.80x = 818,324.70 × 346,095.40
  4. Step 4: Simplify right side
    545,549.80x = 283,218,414,376.38
  5. Step 5: Solve for x
    x = 283,218,414,376.38/545,549.80
  6. Step 6: Final answer
    x = 519,143.10

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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.