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Finding the Fourth Proportional to 529,459.20, 793,022.40 and 370,828.80

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Solution

The fourth proportional to 529,459.20, 793,022.40 and 370,828.80 is: 555,426.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,459.20 : 793,022.40 = 370,828.80 : x
  2. Step 2: Convert to fraction form
    529,459.20/793,022.40 = 370,828.80/x
  3. Step 3: Cross multiply
    529,459.20x = 793,022.40 × 370,828.80
  4. Step 4: Simplify right side
    529,459.20x = 294,075,544,965.12
  5. Step 5: Solve for x
    x = 294,075,544,965.12/529,459.20
  6. Step 6: Final answer
    x = 555,426.26

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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.