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Finding the Fourth Proportional to 603,359.20, 905,038.80 and 535,124.80

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Solution

The fourth proportional to 603,359.20, 905,038.80 and 535,124.80 is: 802,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,359.20 : 905,038.80 = 535,124.80 : x
  2. Step 2: Convert to fraction form
    603,359.20/905,038.80 = 535,124.80/x
  3. Step 3: Cross multiply
    603,359.20x = 905,038.80 × 535,124.80
  4. Step 4: Simplify right side
    603,359.20x = 484,308,706,842.24
  5. Step 5: Solve for x
    x = 484,308,706,842.24/603,359.20
  6. Step 6: Final answer
    x = 802,687.20

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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.