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Finding the Fourth Proportional to 539,554.40, 809,428.80 and 224,043.20

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Solution

The fourth proportional to 539,554.40, 809,428.80 and 224,043.20 is: 336,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,554.40 : 809,428.80 = 224,043.20 : x
  2. Step 2: Convert to fraction form
    539,554.40/809,428.80 = 224,043.20/x
  3. Step 3: Cross multiply
    539,554.40x = 809,428.80 × 224,043.20
  4. Step 4: Simplify right side
    539,554.40x = 181,347,018,524.16
  5. Step 5: Solve for x
    x = 181,347,018,524.16/539,554.40
  6. Step 6: Final answer
    x = 336,105.16

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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.