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Finding the Fourth Proportional to 624,587.60, 936,741.14 and 287,304.28

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Solution

The fourth proportional to 624,587.60, 936,741.14 and 287,304.28 is: 430,891.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,587.60 : 936,741.14 = 287,304.28 : x
  2. Step 2: Convert to fraction form
    624,587.60/936,741.14 = 287,304.28/x
  3. Step 3: Cross multiply
    624,587.60x = 936,741.14 × 287,304.28
  4. Step 4: Simplify right side
    624,587.60x = 269,129,738,774.08
  5. Step 5: Solve for x
    x = 269,129,738,774.08/624,587.60
  6. Step 6: Final answer
    x = 430,891.90

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1.5x scale

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.