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Finding the Fourth Proportional to 587,438.40, 881,157.60 and 307,041.60

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Solution

The fourth proportional to 587,438.40, 881,157.60 and 307,041.60 is: 460,562.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,438.40 : 881,157.60 = 307,041.60 : x
  2. Step 2: Convert to fraction form
    587,438.40/881,157.60 = 307,041.60/x
  3. Step 3: Cross multiply
    587,438.40x = 881,157.60 × 307,041.60
  4. Step 4: Simplify right side
    587,438.40x = 270,552,039,356.16
  5. Step 5: Solve for x
    x = 270,552,039,356.16/587,438.40
  6. Step 6: Final answer
    x = 460,562.40

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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.