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Finding the Fourth Proportional to 648,905.80, 973,358.70 and 648,905.80

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Solution

The fourth proportional to 648,905.80, 973,358.70 and 648,905.80 is: 973,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,905.80 : 973,358.70 = 648,905.80 : x
  2. Step 2: Convert to fraction form
    648,905.80/973,358.70 = 648,905.80/x
  3. Step 3: Cross multiply
    648,905.80x = 973,358.70 × 648,905.80
  4. Step 4: Simplify right side
    648,905.80x = 631,618,105,910.46
  5. Step 5: Solve for x
    x = 631,618,105,910.46/648,905.80
  6. Step 6: Final answer
    x = 973,358.70

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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.