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Finding the Fourth Proportional to 543,637.40, 816,330.90 and 366,927.80

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Solution

The fourth proportional to 543,637.40, 816,330.90 and 366,927.80 is: 550,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,637.40 : 816,330.90 = 366,927.80 : x
  2. Step 2: Convert to fraction form
    543,637.40/816,330.90 = 366,927.80/x
  3. Step 3: Cross multiply
    543,637.40x = 816,330.90 × 366,927.80
  4. Step 4: Simplify right side
    543,637.40x = 299,534,501,209.02
  5. Step 5: Solve for x
    x = 299,534,501,209.02/543,637.40
  6. Step 6: Final answer
    x = 550,982.15

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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.