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Finding the Fourth Proportional to 554,427.40, 832,029.90 and 355,232.20

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Solution

The fourth proportional to 554,427.40, 832,029.90 and 355,232.20 is: 533,097.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,427.40 : 832,029.90 = 355,232.20 : x
  2. Step 2: Convert to fraction form
    554,427.40/832,029.90 = 355,232.20/x
  3. Step 3: Cross multiply
    554,427.40x = 832,029.90 × 355,232.20
  4. Step 4: Simplify right side
    554,427.40x = 295,563,811,842.78
  5. Step 5: Solve for x
    x = 295,563,811,842.78/554,427.40
  6. Step 6: Final answer
    x = 533,097.41

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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.