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Finding the Fourth Proportional to 827,504.40, 1,241,256.60 and 768,455.40

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Solution

The fourth proportional to 827,504.40, 1,241,256.60 and 768,455.40 is: 1,152,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,504.40 : 1,241,256.60 = 768,455.40 : x
  2. Step 2: Convert to fraction form
    827,504.40/1,241,256.60 = 768,455.40/x
  3. Step 3: Cross multiply
    827,504.40x = 1,241,256.60 × 768,455.40
  4. Step 4: Simplify right side
    827,504.40x = 953,850,337,055.64
  5. Step 5: Solve for x
    x = 953,850,337,055.64/827,504.40
  6. Step 6: Final answer
    x = 1,152,683.10

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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.