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Finding the Fourth Proportional to 587,762.20, 881,772.90 and 188,421.40

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Solution

The fourth proportional to 587,762.20, 881,772.90 and 188,421.40 is: 282,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,762.20 : 881,772.90 = 188,421.40 : x
  2. Step 2: Convert to fraction form
    587,762.20/881,772.90 = 188,421.40/x
  3. Step 3: Cross multiply
    587,762.20x = 881,772.90 × 188,421.40
  4. Step 4: Simplify right side
    587,762.20x = 166,144,884,300.06
  5. Step 5: Solve for x
    x = 166,144,884,300.06/587,762.20
  6. Step 6: Final answer
    x = 282,673.65

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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.