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Finding the Fourth Proportional to 652,805.20, 977,895.60 and 440,228.80

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Solution

The fourth proportional to 652,805.20, 977,895.60 and 440,228.80 is: 659,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,805.20 : 977,895.60 = 440,228.80 : x
  2. Step 2: Convert to fraction form
    652,805.20/977,895.60 = 440,228.80/x
  3. Step 3: Cross multiply
    652,805.20x = 977,895.60 × 440,228.80
  4. Step 4: Simplify right side
    652,805.20x = 430,497,806,513.28
  5. Step 5: Solve for x
    x = 430,497,806,513.28/652,805.20
  6. Step 6: Final answer
    x = 659,458.30

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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.