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Finding the Fourth Proportional to 486,528.60, 729,792.90 and 249,720.24

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Solution

The fourth proportional to 486,528.60, 729,792.90 and 249,720.24 is: 374,580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,528.60 : 729,792.90 = 249,720.24 : x
  2. Step 2: Convert to fraction form
    486,528.60/729,792.90 = 249,720.24/x
  3. Step 3: Cross multiply
    486,528.60x = 729,792.90 × 249,720.24
  4. Step 4: Simplify right side
    486,528.60x = 182,244,058,138.30
  5. Step 5: Solve for x
    x = 182,244,058,138.30/486,528.60
  6. Step 6: Final answer
    x = 374,580.36

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Double scale
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Similar ratio
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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.