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Finding the Fourth Proportional to 654,372.10, 980,829.15 and 254,880.10

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Solution

The fourth proportional to 654,372.10, 980,829.15 and 254,880.10 is: 382,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,372.10 : 980,829.15 = 254,880.10 : x
  2. Step 2: Convert to fraction form
    654,372.10/980,829.15 = 254,880.10/x
  3. Step 3: Cross multiply
    654,372.10x = 980,829.15 × 254,880.10
  4. Step 4: Simplify right side
    654,372.10x = 249,993,831,834.92
  5. Step 5: Solve for x
    x = 249,993,831,834.92/654,372.10
  6. Step 6: Final answer
    x = 382,036.20

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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.