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Finding the Fourth Proportional to 673,800.80, 1,008,368.40 and 617,813.60

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Solution

The fourth proportional to 673,800.80, 1,008,368.40 and 617,813.60 is: 924,581.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,800.80 : 1,008,368.40 = 617,813.60 : x
  2. Step 2: Convert to fraction form
    673,800.80/1,008,368.40 = 617,813.60/x
  3. Step 3: Cross multiply
    673,800.80x = 1,008,368.40 × 617,813.60
  4. Step 4: Simplify right side
    673,800.80x = 622,983,711,330.24
  5. Step 5: Solve for x
    x = 622,983,711,330.24/673,800.80
  6. Step 6: Final answer
    x = 924,581.44

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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.