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Finding the Fourth Proportional to 541,673.80, 812,510.70 and 384,209.80

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Solution

The fourth proportional to 541,673.80, 812,510.70 and 384,209.80 is: 576,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,673.80 : 812,510.70 = 384,209.80 : x
  2. Step 2: Convert to fraction form
    541,673.80/812,510.70 = 384,209.80/x
  3. Step 3: Cross multiply
    541,673.80x = 812,510.70 × 384,209.80
  4. Step 4: Simplify right side
    541,673.80x = 312,174,573,544.86
  5. Step 5: Solve for x
    x = 312,174,573,544.86/541,673.80
  6. Step 6: Final answer
    x = 576,314.70

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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.