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Finding the Fourth Proportional to 590,960.40, 886,440.60 and 545,341.20

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Solution

The fourth proportional to 590,960.40, 886,440.60 and 545,341.20 is: 818,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,960.40 : 886,440.60 = 545,341.20 : x
  2. Step 2: Convert to fraction form
    590,960.40/886,440.60 = 545,341.20/x
  3. Step 3: Cross multiply
    590,960.40x = 886,440.60 × 545,341.20
  4. Step 4: Simplify right side
    590,960.40x = 483,412,580,532.72
  5. Step 5: Solve for x
    x = 483,412,580,532.72/590,960.40
  6. Step 6: Final answer
    x = 818,011.80

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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.