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Finding the Fourth Proportional to 350,118.40, 525,811.20 and 306,572.80

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Solution

The fourth proportional to 350,118.40, 525,811.20 and 306,572.80 is: 460,414.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,118.40 : 525,811.20 = 306,572.80 : x
  2. Step 2: Convert to fraction form
    350,118.40/525,811.20 = 306,572.80/x
  3. Step 3: Cross multiply
    350,118.40x = 525,811.20 × 306,572.80
  4. Step 4: Simplify right side
    350,118.40x = 161,199,411,855.36
  5. Step 5: Solve for x
    x = 161,199,411,855.36/350,118.40
  6. Step 6: Final answer
    x = 460,414.00

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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.