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Finding the Fourth Proportional to 545,898.40, 818,847.60 and 190,875.40

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Solution

The fourth proportional to 545,898.40, 818,847.60 and 190,875.40 is: 286,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,898.40 : 818,847.60 = 190,875.40 : x
  2. Step 2: Convert to fraction form
    545,898.40/818,847.60 = 190,875.40/x
  3. Step 3: Cross multiply
    545,898.40x = 818,847.60 × 190,875.40
  4. Step 4: Simplify right side
    545,898.40x = 156,297,863,189.04
  5. Step 5: Solve for x
    x = 156,297,863,189.04/545,898.40
  6. Step 6: Final answer
    x = 286,313.10

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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.