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Finding the Fourth Proportional to 827,477.40, 1,241,216.10 and 768,428.40

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Solution

The fourth proportional to 827,477.40, 1,241,216.10 and 768,428.40 is: 1,152,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,477.40 : 1,241,216.10 = 768,428.40 : x
  2. Step 2: Convert to fraction form
    827,477.40/1,241,216.10 = 768,428.40/x
  3. Step 3: Cross multiply
    827,477.40x = 1,241,216.10 × 768,428.40
  4. Step 4: Simplify right side
    827,477.40x = 953,785,701,777.24
  5. Step 5: Solve for x
    x = 953,785,701,777.24/827,477.40
  6. Step 6: Final answer
    x = 1,152,642.60

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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.